12960686558 has 4 divisors (see below), whose sum is σ = 19441029840. Its totient is φ = 6480343278.

The previous prime is 12960686521. The next prime is 12960686573. The reversal of 12960686558 is 85568606921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85568606921 = 7 ⋅12224086703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3240171638 + ... + 3240171641.

It is an arithmetic number, because the mean of its divisors is an integer number (4860257460).

Almost surely, 2^12960686558 is an apocalyptic number.

12960686558 is a deficient number, since it is larger than the sum of its proper divisors (6480343282).

12960686558 is an equidigital number, since it uses as much as digits as its factorization.

12960686558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6480343281.

The product of its (nonzero) digits is 6220800, while the sum is 56.

The spelling of 12960686558 in words is "twelve billion, nine hundred sixty million, six hundred eighty-six thousand, five hundred fifty-eight".