13123641616 has 20 divisors (see below), whose sum is σ = 25806566032. Its totient is φ = 6463882656.

The previous prime is 13123641551. The next prime is 13123641637. The reversal of 13123641616 is 61614632131.

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, 6120030 + ... + 6122173.

Almost surely, 2^13123641616 is an apocalyptic number.

13123641616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13123641616 is a deficient number, since it is larger than the sum of its proper divisors (12682924416).

13123641616 is a wasteful number, since it uses less digits than its factorization.

13123641616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12242278 (or 12242272 counting only the distinct ones).

The product of its digits is 15552, while the sum is 34.

The spelling of 13123641616 in words is "thirteen billion, one hundred twenty-three million, six hundred forty-one thousand, six hundred sixteen".