11657612155434 has 32 divisors (see below), whose sum is σ = 27505518084096. Its totient is φ = 3223302899760.

The previous prime is 11657612155393. The next prime is 11657612155463. The reversal of 11657612155434 is 43455121675611.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4476808282 + ... + 4476810885.

It is an arithmetic number, because the mean of its divisors is an integer number (859547440128).

Almost surely, 2^{11657612155434} is an apocalyptic number.

11657612155434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

11657612155434 is an abundant number, since it is smaller than the sum of its proper divisors (15847905928662).

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

11657612155434 is a wasteful number, since it uses less digits than its factorization.

11657612155434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8953619210.

The product of its digits is 3024000, while the sum is 51.

The spelling of 11657612155434 in words is "eleven trillion, six hundred fifty-seven billion, six hundred twelve million, one hundred fifty-five thousand, four hundred thirty-four".