16365612525 has 24 divisors (see below), whose sum is σ = 27063413664. Its totient is φ = 8726520000.

The previous prime is 16365612503. The next prime is 16365612583. The reversal of 16365612525 is 52521656361.

It is not a de Polignac number, because 16365612525 - 2⁵ = 16365612493 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 392742 + ... + 432408.

It is an arithmetic number, because the mean of its divisors is an integer number (1127642236).

Almost surely, 2^16365612525 is an apocalyptic number.

16365612525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16365612525 is a deficient number, since it is larger than the sum of its proper divisors (10697801139).

16365612525 is a wasteful number, since it uses less digits than its factorization.

16365612525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45181 (or 45176 counting only the distinct ones).

The product of its digits is 324000, while the sum is 42.

The spelling of 16365612525 in words is "sixteen billion, three hundred sixty-five million, six hundred twelve thousand, five hundred twenty-five".