23151151555120 has 20 divisors (see below), whose sum is σ = 53826427365840. Its totient is φ = 9260460622016.

The previous prime is 23151151555093. The next prime is 23151151555151. The reversal of 23151151555120 is 2155515115132.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-3 number, since 3×23151151555120³ (a number of 41 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23151151555120.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144694697140 + ... + 144694697299.

It is an arithmetic number, because the mean of its divisors is an integer number (2691321368292).

Almost surely, 2^{23151151555120} is an apocalyptic number.

23151151555120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23151151555120 is an abundant number, since it is smaller than the sum of its proper divisors (30675275810720).

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

23151151555120 is a wasteful number, since it uses less digits than its factorization.

23151151555120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289389394452 (or 289389394446 counting only the distinct ones).

The product of its (nonzero) digits is 37500, while the sum is 37.

The spelling of 23151151555120 in words is "twenty-three trillion, one hundred fifty-one billion, one hundred fifty-one million, five hundred fifty-five thousand, one hundred twenty".