13403561356 has 12 divisors (see below), whose sum is σ = 23542788640. Its totient is φ = 6677050320.

The previous prime is 13403561239. The next prime is 13403561401. The reversal of 13403561356 is 65316530431.

It is a happy number.

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, 6181371 + ... + 6183538.

Almost surely, 2^13403561356 is an apocalyptic number.

It is an amenable number.

13403561356 is a deficient number, since it is larger than the sum of its proper divisors (10139227284).

13403561356 is a wasteful number, since it uses less digits than its factorization.

13403561356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12365184 (or 12365182 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 37.

The spelling of 13403561356 in words is "thirteen billion, four hundred three million, five hundred sixty-one thousand, three hundred fifty-six".