2156636364430 has 16 divisors (see below), whose sum is σ = 3884403967920. Its totient is φ = 862108209792.

The previous prime is 2156636364329. The next prime is 2156636364457. The reversal of 2156636364430 is 344636366512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68275419 + ... + 68306998.

It is an arithmetic number, because the mean of its divisors is an integer number (242775247995).

Almost surely, 2^{2156636364430} is an apocalyptic number.

2156636364430 is a deficient number, since it is larger than the sum of its proper divisors (1727767603490).

2156636364430 is a wasteful number, since it uses less digits than its factorization.

2156636364430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136584003.

The product of its (nonzero) digits is 5598720, while the sum is 49.

The spelling of 2156636364430 in words is "two trillion, one hundred fifty-six billion, six hundred thirty-six million, three hundred sixty-four thousand, four hundred thirty".