16572972525 has 24 divisors (see below), whose sum is σ = 27409153440. Its totient is φ = 8836175040.

The previous prime is 16572972523. The next prime is 16572972551. The reversal of 16572972525 is 52527927561.

It is not a de Polignac number, because 16572972525 - 2¹ = 16572972523 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16572972523) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 221574 + ... + 286776.

It is an arithmetic number, because the mean of its divisors is an integer number (1142048060).

Almost surely, 2^16572972525 is an apocalyptic number.

16572972525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16572972525 is a deficient number, since it is larger than the sum of its proper divisors (10836180915).

16572972525 is a wasteful number, since it uses less digits than its factorization.

16572972525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68605 (or 68600 counting only the distinct ones).

The product of its digits is 2646000, while the sum is 51.

The spelling of 16572972525 in words is "sixteen billion, five hundred seventy-two million, nine hundred seventy-two thousand, five hundred twenty-five".