13660656142 has 16 divisors (see below), whose sum is σ = 23714703360. Its totient is φ = 5780458008.

The previous prime is 13660656131. The next prime is 13660656167. The reversal of 13660656142 is 24165606631.

It is a super-2 number, since 2×13660656142² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13660656095 and 13660656104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6174598 + ... + 6176809.

It is an arithmetic number, because the mean of its divisors is an integer number (1482168960).

Almost surely, 2^13660656142 is an apocalyptic number.

13660656142 is a deficient number, since it is larger than the sum of its proper divisors (10054047218).

13660656142 is a wasteful number, since it uses less digits than its factorization.

13660656142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12351495.

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 13660656142 in words is "thirteen billion, six hundred sixty million, six hundred fifty-six thousand, one hundred forty-two".