16464990976 has 54 divisors (see below), whose sum is σ = 38231517660. Its totient is φ = 7056419328.

The previous prime is 16464990917. The next prime is 16464991003. The reversal of 16464990976 is 67909946461.

It is a super-2 number, since 2×16464990976² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 643746 + ... + 668833.

Almost surely, 2^16464990976 is an apocalyptic number.

16464990976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16464990976 is an abundant number, since it is smaller than the sum of its proper divisors (21766526684).

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

16464990976 is an equidigital number, since it uses as much as digits as its factorization.

16464990976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312609 (or 1312588 counting only the distinct ones).

The product of its (nonzero) digits is 17635968, while the sum is 61.

The spelling of 16464990976 in words is "sixteen billion, four hundred sixty-four million, nine hundred ninety thousand, nine hundred seventy-six".