23335667920 has 40 divisors (see below), whose sum is σ = 54492393960. Its totient is φ = 9293498880.

The previous prime is 23335667843. The next prime is 23335667921. The reversal of 23335667920 is 2976653332.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8566613136 + 14769054784 = 92556^2 + 121528^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23335667921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 618571 + ... + 655210.

It is an arithmetic number, because the mean of its divisors is an integer number (1362309849).

Almost surely, 2^23335667920 is an apocalyptic number.

23335667920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23335667920 is an abundant number, since it is smaller than the sum of its proper divisors (31156726040).

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

23335667920 is a wasteful number, since it uses less digits than its factorization.

23335667920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1274023 (or 1274017 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 46.

The spelling of 23335667920 in words is "twenty-three billion, three hundred thirty-five million, six hundred sixty-seven thousand, nine hundred twenty".