36566123256 has 96 divisors (see below), whose sum is σ = 106709344560. Its totient is φ = 11244980736.

The previous prime is 36566123221. The next prime is 36566123273. The reversal of 36566123256 is 65232166563.

36566123256 is a `hidden beast` number, since 3 + 6 + 5 + 6 + 612 + 3 + 25 + 6 = 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, 1887636 + ... + 1906908.

Almost surely, 2^36566123256 is an apocalyptic number.

36566123256 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36566123256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53354672280).

36566123256 is an abundant number, since it is smaller than the sum of its proper divisors (70143221304).

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

36566123256 is a wasteful number, since it uses less digits than its factorization.

36566123256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21325 (or 21318 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 45.

The spelling of 36566123256 in words is "thirty-six billion, five hundred sixty-six million, one hundred twenty-three thousand, two hundred fifty-six".