23166362025 has 81 divisors (see below), whose sum is σ = 42374556549. Its totient is φ = 12098471040.

The previous prime is 23166361997. The next prime is 23166362027. The reversal of 23166362025 is 52026366132.

The square root of 23166362025 is 152205.

It is a perfect power (a square), and thus also a powerful number.

23166362025 is a `hidden beast` number, since 2 + 3 + 1 + 6 + 6 + 3 + 620 + 25 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 126765081 + 23039596944 = 11259^2 + 151788^2 .

It is not a de Polignac number, because 23166362025 - 2⁹ = 23166361513 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23166362027) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 166664406 + ... + 166664544.

Almost surely, 2^23166362025 is an apocalyptic number.

23166362025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

23166362025 is the 152205-th square number.

23166362025 is the 76103-rd centered octagonal number.

It is an amenable number.

23166362025 is a deficient number, since it is larger than the sum of its proper divisors (19208194524).

23166362025 is an equidigital number, since it uses as much as digits as its factorization.

23166362025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

Multiplying 23166362025 by its sum of digits (36), we get a square (833989032900 = 913230²).

The spelling of 23166362025 in words is "twenty-three billion, one hundred sixty-six million, three hundred sixty-two thousand, twenty-five".