16560061600 has 36 divisors (see below), whose sum is σ = 40427252334. Its totient is φ = 6624024320.

The previous prime is 16560061577. The next prime is 16560061601. The reversal of 16560061600 is 616006561.

It can be written as a sum of positive squares in 3 ways, for example, as 10632909456 + 5927152144 = 103116^2 + 76988^2 .

It is not an unprimeable number, because it can be changed into a prime (16560061601) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10349239 + ... + 10350838.

Almost surely, 2^16560061600 is an apocalyptic number.

16560061600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16560061600 is an abundant number, since it is smaller than the sum of its proper divisors (23867190734).

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

16560061600 is a wasteful number, since it uses less digits than its factorization.

16560061600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20700097 (or 20700084 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The spelling of 16560061600 in words is "sixteen billion, five hundred sixty million, sixty-one thousand, six hundred".