12516464520475 has 12 divisors (see below), whose sum is σ = 15575258473576. Its totient is φ = 9977789378880.

The previous prime is 12516464520473. The next prime is 12516464520479. The reversal of 12516464520475 is 57402546461521.

It is not a de Polignac number, because 12516464520475 - 2¹ = 12516464520473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12516464520473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 884548722 + ... + 884562871.

Almost surely, 2^{12516464520475} is an apocalyptic number.

12516464520475 is a deficient number, since it is larger than the sum of its proper divisors (3058793953101).

12516464520475 is a wasteful number, since it uses less digits than its factorization.

12516464520475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1769111886 (or 1769111881 counting only the distinct ones).

The product of its (nonzero) digits is 8064000, while the sum is 52.

The spelling of 12516464520475 in words is "twelve trillion, five hundred sixteen billion, four hundred sixty-four million, five hundred twenty thousand, four hundred seventy-five".