23661929025 has 72 divisors (see below), whose sum is σ = 48915482304. Its totient is φ = 10709712000.

The previous prime is 23661929021. The next prime is 23661929033. The reversal of 23661929025 is 52092916632.

23661929025 is a `hidden beast` number, since 2 + 3 + 6 + 619 + 2 + 9 + 0 + 25 = 666.

It is not a de Polignac number, because 23661929025 - 2² = 23661929021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (23661929021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 84702 + ... + 233448.

Almost surely, 2^23661929025 is an apocalyptic number.

23661929025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23661929025 is an abundant number, since it is smaller than the sum of its proper divisors (25253553279).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23661929025 is a wasteful number, since it uses less digits than its factorization.

23661929025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148871 (or 148863 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

It can be divided in two parts, 2366 and 1929025, that added together give a palindrome (1931391).

The spelling of 23661929025 in words is "twenty-three billion, six hundred sixty-one million, nine hundred twenty-nine thousand, twenty-five".