23154425220 has 72 divisors (see below), whose sum is σ = 67773839616. Its totient is φ = 5906048192.

The previous prime is 23154425219. The next prime is 23154425293. The reversal of 23154425220 is 2252445132.

It is a super-2 number, since 2×23154425220² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 333012 + ... + 396491.

It is an arithmetic number, because the mean of its divisors is an integer number (941303328).

Almost surely, 2^23154425220 is an apocalyptic number.

23154425220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23154425220 is an abundant number, since it is smaller than the sum of its proper divisors (44619414396).

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

23154425220 is a wasteful number, since it uses less digits than its factorization.

23154425220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729561 (or 729536 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The spelling of 23154425220 in words is "twenty-three billion, one hundred fifty-four million, four hundred twenty-five thousand, two hundred twenty".