16572648431 has 2 divisors, whose sum is σ = 16572648432. Its totient is φ = 16572648430.

The previous prime is 16572648403. The next prime is 16572648451. The reversal of 16572648431 is 13484627561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16572648431 - 2¹⁰ = 16572647407 is a prime.

It is a super-2 number, since 2×16572648431² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16572648451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8286324215 + 8286324216.

It is an arithmetic number, because the mean of its divisors is an integer number (8286324216).

Almost surely, 2^16572648431 is an apocalyptic number.

16572648431 is a deficient number, since it is larger than the sum of its proper divisors (1).

16572648431 is an equidigital number, since it uses as much as digits as its factorization.

16572648431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 967680, while the sum is 47.

The spelling of 16572648431 in words is "sixteen billion, five hundred seventy-two million, six hundred forty-eight thousand, four hundred thirty-one".