2155135635 has 12 divisors (see below), whose sum is σ = 3735568512. Its totient is φ = 1149405648.

The previous prime is 2155135613. The next prime is 2155135709. The reversal of 2155135635 is 5365315512.

2155135635 is a `hidden beast` number, since 2 + 1 + 5 + 5 + 13 + 5 + 635 = 666.

It is not a de Polignac number, because 2155135635 - 2⁸ = 2155135379 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2155135635.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23945907 + ... + 23945996.

It is an arithmetic number, because the mean of its divisors is an integer number (311297376).

Almost surely, 2^2155135635 is an apocalyptic number.

2155135635 is a deficient number, since it is larger than the sum of its proper divisors (1580432877).

2155135635 is a wasteful number, since it uses less digits than its factorization.

2155135635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47891914 (or 47891911 counting only the distinct ones).

The product of its digits is 67500, while the sum is 36.

The square root of 2155135635 is about 46423.4384228484. The cubic root of 2155135635 is about 1291.6897183168.

The spelling of 2155135635 in words is "two billion, one hundred fifty-five million, one hundred thirty-five thousand, six hundred thirty-five".