2136256164 has 36 divisors (see below), whose sum is σ = 6171407424. Its totient is φ = 610358832.

The previous prime is 2136256103. The next prime is 2136256183. The reversal of 2136256164 is 4616526312.

2136256164 is a `hidden beast` number, since 2 + 1 + 36 + 2 + 5 + 616 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 4238352 + ... + 4238855.

It is an arithmetic number, because the mean of its divisors is an integer number (171427984).

Almost surely, 2^2136256164 is an apocalyptic number.

It is an amenable number.

2136256164 is an abundant number, since it is smaller than the sum of its proper divisors (4035151260).

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

2136256164 is a wasteful number, since it uses less digits than its factorization.

2136256164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8477224 (or 8477219 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 2136256164 is about 46219.6512751881. The cubic root of 2136256164 is about 1287.9068199311.

The spelling of 2136256164 in words is "two billion, one hundred thirty-six million, two hundred fifty-six thousand, one hundred sixty-four".