6620150040 has 128 divisors (see below), whose sum is σ = 22922680320. Its totient is φ = 1498176000.

The previous prime is 6620149973. The next prime is 6620150059. The reversal of 6620150040 is 400510266.

It is a super-2 number, since 2×6620150040² = 87652773104224003200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45825 + ... + 123855.

It is an arithmetic number, because the mean of its divisors is an integer number (179083440).

Almost surely, 2^6620150040 is an apocalyptic number.

6620150040 is a gapful number since it is divisible by the number (60) 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 6620150040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11461340160).

6620150040 is an abundant number, since it is smaller than the sum of its proper divisors (16302530280).

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

6620150040 is a wasteful number, since it uses less digits than its factorization.

6620150040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78153 (or 78149 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 6620150040 is about 81364.3044584049. The cubic root of 6620150040 is about 1877.6844548957.

The spelling of 6620150040 in words is "six billion, six hundred twenty million, one hundred fifty thousand, forty".