23164355412 has 72 divisors (see below), whose sum is σ = 63940548672. Its totient is φ = 7012569600.

The previous prime is 23164355407. The next prime is 23164355429. The reversal of 23164355412 is 21455346132.

23164355412 is a `hidden beast` number, since 2 + 3 + 1 + 643 + 5 + 5 + 4 + 1 + 2 = 666.

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

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, 379908 + ... + 436644.

It is an arithmetic number, because the mean of its divisors is an integer number (888063176).

Almost surely, 2^23164355412 is an apocalyptic number.

23164355412 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 23164355412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31970274336).

23164355412 is an abundant number, since it is smaller than the sum of its proper divisors (40776193260).

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

23164355412 is a wasteful number, since it uses less digits than its factorization.

23164355412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57789 (or 57784 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The spelling of 23164355412 in words is "twenty-three billion, one hundred sixty-four million, three hundred fifty-five thousand, four hundred twelve".