16506775232 has 28 divisors (see below), whose sum is σ = 33216988176. Its totient is φ = 8137140480.

The previous prime is 16506775231. The next prime is 16506775247. The reversal of 16506775232 is 23257760561.

It is not an unprimeable number, because it can be changed into a prime (16506775231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1811783 + ... + 1820870.

Almost surely, 2^16506775232 is an apocalyptic number.

It is an amenable number.

16506775232 is an abundant number, since it is smaller than the sum of its proper divisors (16710212944).

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

16506775232 is an equidigital number, since it uses as much as digits as its factorization.

16506775232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3632736 (or 3632726 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 44.

The spelling of 16506775232 in words is "sixteen billion, five hundred six million, seven hundred seventy-five thousand, two hundred thirty-two".