13109184656 has 40 divisors (see below), whose sum is σ = 26442928824. Its totient is φ = 6290058240.

The previous prime is 13109184559. The next prime is 13109184701. The reversal of 13109184656 is 65648190131.

It can be written as a sum of positive squares in 4 ways, for example, as 9212928256 + 3896256400 = 95984^2 + 62420^2 .

It is a super-3 number, since 3×13109184656³ (a number of 31 digits) contains 333 as substring.

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, 108455 + ... + 194886.

Almost surely, 2^13109184656 is an apocalyptic number.

13109184656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13109184656 is an abundant number, since it is smaller than the sum of its proper divisors (13333744168).

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

13109184656 is a wasteful number, since it uses less digits than its factorization.

13109184656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303459 (or 303453 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 44.

The spelling of 13109184656 in words is "thirteen billion, one hundred nine million, one hundred eighty-four thousand, six hundred fifty-six".