16616500016 has 10 divisors (see below), whose sum is σ = 32194468812. Its totient is φ = 8308250000.

The previous prime is 16616500013. The next prime is 16616500031. The reversal of 16616500016 is 61000561661.

It is a super-2 number, since 2×16616500016² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16616500013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 519265610 + ... + 519265641.

Almost surely, 2^16616500016 is an apocalyptic number.

16616500016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16616500016 is a deficient number, since it is larger than the sum of its proper divisors (15577968796).

16616500016 is a wasteful number, since it uses less digits than its factorization.

16616500016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038531259 (or 1038531253 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The spelling of 16616500016 in words is "sixteen billion, six hundred sixteen million, five hundred thousand, sixteen".