6620010944 has 56 divisors (see below), whose sum is σ = 13318784640. Its totient is φ = 3264245504.

The previous prime is 6620010941. The next prime is 6620010973. The reversal of 6620010944 is 4490100266.

It is a happy number.

It is a super-2 number, since 2×6620010944² = 87649089797359542272, which contains 22 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 6620010944.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6620010941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5412317 + ... + 5413539.

It is an arithmetic number, because the mean of its divisors is an integer number (237835440).

Almost surely, 2^6620010944 is an apocalyptic number.

6620010944 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6620010944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6659392320).

6620010944 is an abundant number, since it is smaller than the sum of its proper divisors (6698773696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6620010944 is a wasteful number, since it uses less digits than its factorization.

6620010944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2337 (or 2327 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 6620010944 is about 81363.4496810454. The cubic root of 6620010944 is about 1877.6713041250.

The spelling of 6620010944 in words is "six billion, six hundred twenty million, ten thousand, nine hundred forty-four".