16315600561 has 32 divisors (see below), whose sum is σ = 18795974400. Its totient is φ = 14036924160.

The previous prime is 16315600517. The next prime is 16315600573. The reversal of 16315600561 is 16500651361.

It is a cyclic number.

It is not a de Polignac number, because 16315600561 - 2¹³ = 16315592369 is a prime.

It is a super-2 number, since 2×16315600561² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16315600501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13274895 + ... + 13276123.

It is an arithmetic number, because the mean of its divisors is an integer number (587374200).

Almost surely, 2^16315600561 is an apocalyptic number.

It is an amenable number.

16315600561 is a deficient number, since it is larger than the sum of its proper divisors (2480373839).

16315600561 is a wasteful number, since it uses less digits than its factorization.

16315600561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2089.

The product of its (nonzero) digits is 16200, while the sum is 34.

The spelling of 16315600561 in words is "sixteen billion, three hundred fifteen million, six hundred thousand, five hundred sixty-one".