12656421514 has 8 divisors (see below), whose sum is σ = 20710507968. Its totient is φ = 5752918860.

The previous prime is 12656421499. The next prime is 12656421551. The reversal of 12656421514 is 41512465621.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 287645922 + ... + 287645965.

It is an arithmetic number, because the mean of its divisors is an integer number (2588813496).

Almost surely, 2^12656421514 is an apocalyptic number.

12656421514 is a deficient number, since it is larger than the sum of its proper divisors (8054086454).

12656421514 is a wasteful number, since it uses less digits than its factorization.

12656421514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575291900.

The product of its digits is 57600, while the sum is 37.

The spelling of 12656421514 in words is "twelve billion, six hundred fifty-six million, four hundred twenty-one thousand, five hundred fourteen".