12615146207464 has 16 divisors (see below), whose sum is σ = 23653555222500. Its totient is φ = 6307531481472.

The previous prime is 12615146207407. The next prime is 12615146207527. The reversal of 12615146207464 is 46470264151621.

It can be written as a sum of positive squares in 2 ways, for example, as 11282142032100 + 1333004175364 = 3358890^2 + 1154558^2 .

It is a super-2 number, since 2×12615146207464² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3895339 + ... + 6356410.

Almost surely, 2^{12615146207464} is an apocalyptic number.

It is an amenable number.

12615146207464 is a deficient number, since it is larger than the sum of its proper divisors (11038409015036).

12615146207464 is a wasteful number, since it uses less digits than its factorization.

12615146207464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10405572 (or 10405568 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 49.

The spelling of 12615146207464 in words is "twelve trillion, six hundred fifteen billion, one hundred forty-six million, two hundred seven thousand, four hundred sixty-four".