23145155040500 has 96 divisors (see below), whose sum is σ = 53278733158560. Its totient is φ = 8770161254400.

The previous prime is 23145155040407. The next prime is 23145155040503. The reversal of 23145155040500 is 504055154132.

It can be written as a sum of positive squares in 16 ways, for example, as 9033847764496 + 14111307276004 = 3005636^2 + 3756502^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23145155040503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14290157 + ... + 15827156.

It is an arithmetic number, because the mean of its divisors is an integer number (554986803735).

Almost surely, 2^{23145155040500} is an apocalyptic number.

23145155040500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23145155040500 is an abundant number, since it is smaller than the sum of its proper divisors (30133578118060).

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

23145155040500 is a wasteful number, since it uses less digits than its factorization.

23145155040500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30117414 (or 30117402 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 35.

The spelling of 23145155040500 in words is "twenty-three trillion, one hundred forty-five billion, one hundred fifty-five million, forty thousand, five hundred".