16238564625 has 96 divisors (see below), whose sum is σ = 28404020736. Its totient is φ = 8234956800.

The previous prime is 16238564609. The next prime is 16238564647. The reversal of 16238564625 is 52646583261.

It is not a de Polignac number, because 16238564625 - 2⁴ = 16238564609 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 24128289 + ... + 24128961.

It is an arithmetic number, because the mean of its divisors is an integer number (295875216).

Almost surely, 2^16238564625 is an apocalyptic number.

16238564625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16238564625 is a deficient number, since it is larger than the sum of its proper divisors (12165456111).

16238564625 is an equidigital number, since it uses as much as digits as its factorization.

16238564625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812 (or 765 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 48.

The spelling of 16238564625 in words is "sixteen billion, two hundred thirty-eight million, five hundred sixty-four thousand, six hundred twenty-five".