23151152055520 has 48 divisors (see below), whose sum is σ = 54697781491920. Its totient is φ = 9259921603584.

The previous prime is 23151152055491. The next prime is 23151152055529. The reversal of 23151152055520 is 2555025115132.

It is a self number, because there is not a number n which added to its sum of digits gives 23151152055520.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23151152055529) 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, 1450602 + ... + 6957481.

It is an arithmetic number, because the mean of its divisors is an integer number (1139537114415).

Almost surely, 2^{23151152055520} is an apocalyptic number.

23151152055520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23151152055520 is an abundant number, since it is smaller than the sum of its proper divisors (31546629436400).

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

23151152055520 is a wasteful number, since it uses less digits than its factorization.

23151152055520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8425307 (or 8425299 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 37.

The spelling of 23151152055520 in words is "twenty-three trillion, one hundred fifty-one billion, one hundred fifty-two million, fifty-five thousand, five hundred twenty".