6621011496 has 128 divisors (see below), whose sum is σ = 20711116800. Its totient is φ = 1941624000.

The previous prime is 6621011479. The next prime is 6621011497. The reversal of 6621011496 is 6941101266.

6621011496 is a `hidden beast` number, since 6 + 62 + 101 + 1 + 496 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 6621011496.

It is not an unprimeable number, because it can be changed into a prime (6621011497) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28711 + ... + 118601.

It is an arithmetic number, because the mean of its divisors is an integer number (161805600).

Almost surely, 2^6621011496 is an apocalyptic number.

6621011496 is a gapful number since it is divisible by the number (66) 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 6621011496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10355558400).

6621011496 is an abundant number, since it is smaller than the sum of its proper divisors (14090105304).

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

6621011496 is a wasteful number, since it uses less digits than its factorization.

6621011496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89948 (or 89938 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 6621011496 is about 81369.5981064181. The cubic root of 6621011496 is about 1877.7658967751.

The spelling of 6621011496 in words is "six billion, six hundred twenty-one million, eleven thousand, four hundred ninety-six".