13421663156 has 216 divisors, whose sum is σ = 29654956800. Its totient is φ = 5289926400.

The previous prime is 13421663141. The next prime is 13421663173. The reversal of 13421663156 is 65136612431.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 150805160 + ... + 150805248.

Almost surely, 2^13421663156 is an apocalyptic number.

It is an amenable number.

13421663156 is an abundant number, since it is smaller than the sum of its proper divisors (16233293644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13421663156 is a wasteful number, since it uses less digits than its factorization.

13421663156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211 (or 175 counting only the distinct ones).

The product of its digits is 77760, while the sum is 38.

The spelling of 13421663156 in words is "thirteen billion, four hundred twenty-one million, six hundred sixty-three thousand, one hundred fifty-six".