16517453512 has 48 divisors (see below), whose sum is σ = 36460715760. Its totient is φ = 6993606816.

The previous prime is 16517453497. The next prime is 16517453543. The reversal of 16517453512 is 21535471561.

It is a happy number.

It is a super-2 number, since 2×16517453512² (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 11 ways as a sum of consecutive naturals, for example, 221298 + ... + 286369.

It is an arithmetic number, because the mean of its divisors is an integer number (759598245).

Almost surely, 2^16517453512 is an apocalyptic number.

It is an amenable number.

16517453512 is an abundant number, since it is smaller than the sum of its proper divisors (19943262248).

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

16517453512 is a wasteful number, since it uses less digits than its factorization.

16517453512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507770 (or 507759 counting only the distinct ones).

The product of its digits is 126000, while the sum is 40.

The spelling of 16517453512 in words is "sixteen billion, five hundred seventeen million, four hundred fifty-three thousand, five hundred twelve".