16560901031 has 4 divisors (see below), whose sum is σ = 16573458000. Its totient is φ = 16548344064.

The previous prime is 16560901013. The next prime is 16560901079. The reversal of 16560901031 is 13010906561.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16560901031 - 2¹⁴ = 16560884647 is a prime.

It is a super-2 number, since 2×16560901031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16560901081) 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, 6276506 + ... + 6279143.

It is an arithmetic number, because the mean of its divisors is an integer number (4143364500).

Almost surely, 2^16560901031 is an apocalyptic number.

16560901031 is a deficient number, since it is larger than the sum of its proper divisors (12556969).

16560901031 is a wasteful number, since it uses less digits than its factorization.

16560901031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12556968.

The product of its (nonzero) digits is 4860, while the sum is 32.

The spelling of 16560901031 in words is "sixteen billion, five hundred sixty million, nine hundred one thousand, thirty-one".