12515570076623 has 4 divisors (see below), whose sum is σ = 12516919182600. Its totient is φ = 12514220970648.

The previous prime is 12515570076617. The next prime is 12515570076643. The reversal of 12515570076623 is 32667007551521.

12515570076623 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12515570076623 - 2⁸ = 12515570076367 is a prime.

It is a super-2 number, since 2×12515570076623² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12515570076643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 674539073 + ... + 674557626.

It is an arithmetic number, because the mean of its divisors is an integer number (3129229795650).

Almost surely, 2^{12515570076623} is an apocalyptic number.

12515570076623 is a deficient number, since it is larger than the sum of its proper divisors (1349105977).

12515570076623 is an equidigital number, since it uses as much as digits as its factorization.

12515570076623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349105976.

The product of its (nonzero) digits is 2646000, while the sum is 50.

The spelling of 12515570076623 in words is "twelve trillion, five hundred fifteen billion, five hundred seventy million, seventy-six thousand, six hundred twenty-three".