23355522420 has 96 divisors (see below), whose sum is σ = 70217715456. Its totient is φ = 5779200000.

The previous prime is 23355522353. The next prime is 23355522433. The reversal of 23355522420 is 2422555332.

It is a super-2 number, since 2×23355522420² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88831 + ... + 233670.

It is an arithmetic number, because the mean of its divisors is an integer number (731434536).

Almost surely, 2^23355522420 is an apocalyptic number.

23355522420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23355522420 is an abundant number, since it is smaller than the sum of its proper divisors (46862193036).

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

23355522420 is a wasteful number, since it uses less digits than its factorization.

23355522420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322601 (or 322599 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 33.

The spelling of 23355522420 in words is "twenty-three billion, three hundred fifty-five million, five hundred twenty-two thousand, four hundred twenty".