55135536156 has 72 divisors (see below), whose sum is σ = 146747175120. Its totient is φ = 17406296064.

The previous prime is 55135536143. The next prime is 55135536193. The reversal of 55135536156 is 65163553155.

55135536156 is a `hidden beast` number, since 5 + 513 + 55 + 36 + 1 + 56 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2981916 + ... + 3000348.

It is an arithmetic number, because the mean of its divisors is an integer number (2038155210).

Almost surely, 2^55135536156 is an apocalyptic number.

It is an amenable number.

55135536156 is an abundant number, since it is smaller than the sum of its proper divisors (91611638964).

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

55135536156 is a wasteful number, since it uses less digits than its factorization.

55135536156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22835 (or 22830 counting only the distinct ones).

The product of its digits is 1012500, while the sum is 45.

The spelling of 55135536156 in words is "fifty-five billion, one hundred thirty-five million, five hundred thirty-six thousand, one hundred fifty-six".