2136661056 has 168 divisors, whose sum is σ = 6309567264. Its totient is φ = 690923520.

The previous prime is 2136661049. The next prime is 2136661063. The reversal of 2136661056 is 6501666312.

It is an interprime number because it is at equal distance from previous prime (2136661049) and next prime (2136661063).

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

It is a self number, because there is not a number n which added to its sum of digits gives 2136661056.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6959655 + ... + 6959961.

It is an arithmetic number, because the mean of its divisors is an integer number (37556948).

Almost surely, 2^2136661056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2136661056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3154783632).

2136661056 is an abundant number, since it is smaller than the sum of its proper divisors (4172906208).

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

2136661056 is a wasteful number, since it uses less digits than its factorization.

2136661056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649 (or 636 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 2136661056 is about 46224.0311526375. The cubic root of 2136661056 is about 1287.9881819319.

The spelling of 2136661056 in words is "two billion, one hundred thirty-six million, six hundred sixty-one thousand, fifty-six".