6649790120 has 32 divisors (see below), whose sum is σ = 14972065920. Its totient is φ = 2658131520.

The previous prime is 6649790117. The next prime is 6649790177. The reversal of 6649790120 is 210979466.

It is a super-2 number, since 2×6649790120² = 88439417280099228800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5429 + ... + 115451.

It is an arithmetic number, because the mean of its divisors is an integer number (467877060).

Almost surely, 2^6649790120 is an apocalyptic number.

It is an amenable number.

6649790120 is an abundant number, since it is smaller than the sum of its proper divisors (8322275800).

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

6649790120 is a wasteful number, since it uses less digits than its factorization.

6649790120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111545 (or 111541 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 6649790120 is about 81546.2452845010. The cubic root of 6649790120 is about 1880.4825719093.

The spelling of 6649790120 in words is "six billion, six hundred forty-nine million, seven hundred ninety thousand, one hundred twenty".