2136636216 has 96 divisors (see below), whose sum is σ = 6798420720. Its totient is φ = 597657600.

The previous prime is 2136636179. The next prime is 2136636217. The reversal of 2136636216 is 6126366312.

2136636216 is a `hidden beast` number, since 2 + 1 + 3 + 6 + 636 + 2 + 16 = 666.

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2136636217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 93465 + ... + 114056.

Almost surely, 2^2136636216 is an apocalyptic number.

2136636216 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2136636216 is an abundant number, since it is smaller than the sum of its proper divisors (4661784504).

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

2136636216 is a wasteful number, since it uses less digits than its factorization.

2136636216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207557 (or 207550 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

The square root of 2136636216 is about 46223.7624604488. The cubic root of 2136636216 is about 1287.9831906940.

The spelling of 2136636216 in words is "two billion, one hundred thirty-six million, six hundred thirty-six thousand, two hundred sixteen".