23156265132 has 216 divisors, whose sum is σ = 79187702048. Its totient is φ = 5551856640.

The previous prime is 23156265127. The next prime is 23156265133.

23156265132 is a `hidden beast` number, since 2 + 3 + 1 + 562 + 65 + 1 + 32 = 666.

23156265132 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×23156265132² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (23156265133) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 367188 + ... + 425604.

Almost surely, 2^23156265132 is an apocalyptic number.

23156265132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23156265132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39593851024).

23156265132 is an abundant number, since it is smaller than the sum of its proper divisors (56031436916).

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

23156265132 is a wasteful number, since it uses less digits than its factorization.

23156265132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58469 (or 58453 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The spelling of 23156265132 in words is "twenty-three billion, one hundred fifty-six million, two hundred sixty-five thousand, one hundred thirty-two".