12566155750023 has 16 divisors (see below), whose sum is σ = 16780644274176. Its totient is φ = 8364552836640.

The previous prime is 12566155750009. The next prime is 12566155750079. The reversal of 12566155750023 is 32005755166521.

It is not a de Polignac number, because 12566155750023 - 2⁴ = 12566155750007 is a prime.

It is a super-2 number, since 2×12566155750023² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12566155750003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149728090 + ... + 149811992.

It is an arithmetic number, because the mean of its divisors is an integer number (1048790267136).

Almost surely, 2^{12566155750023} is an apocalyptic number.

12566155750023 is a deficient number, since it is larger than the sum of its proper divisors (4214488524153).

12566155750023 is an equidigital number, since it uses as much as digits as its factorization.

12566155750023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160094.

The product of its (nonzero) digits is 1890000, while the sum is 48.

The spelling of 12566155750023 in words is "twelve trillion, five hundred sixty-six billion, one hundred fifty-five million, seven hundred fifty thousand, twenty-three".