23215510973158 has 16 divisors (see below), whose sum is σ = 39798746380800. Its totient is φ = 9949322810376.

The previous prime is 23215510973141. The next prime is 23215510973177. The reversal of 23215510973158 is 85137901551232.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14363116 + ... + 15897487.

It is an arithmetic number, because the mean of its divisors is an integer number (2487421648800).

Almost surely, 2^{23215510973158} is an apocalyptic number.

23215510973158 is a deficient number, since it is larger than the sum of its proper divisors (16583235407642).

23215510973158 is a wasteful number, since it uses less digits than its factorization.

23215510973158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30315411.

The product of its (nonzero) digits is 2268000, while the sum is 52.

The spelling of 23215510973158 in words is "twenty-three trillion, two hundred fifteen billion, five hundred ten million, nine hundred seventy-three thousand, one hundred fifty-eight".