2136560407631 has 4 divisors (see below), whose sum is σ = 2300911208232. Its totient is φ = 1972209607032.

The previous prime is 2136560407627. The next prime is 2136560407661. The reversal of 2136560407631 is 1367040656312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2136560407631 - 2² = 2136560407627 is a prime.

It is a super-2 number, since 2×2136560407631² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2136560407661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82175400281 + ... + 82175400306.

It is an arithmetic number, because the mean of its divisors is an integer number (575227802058).

Almost surely, 2^{2136560407631} is an apocalyptic number.

2136560407631 is a deficient number, since it is larger than the sum of its proper divisors (164350800601).

2136560407631 is a wasteful number, since it uses less digits than its factorization.

2136560407631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164350800600.

The product of its (nonzero) digits is 544320, while the sum is 44.

The spelling of 2136560407631 in words is "two trillion, one hundred thirty-six billion, five hundred sixty million, four hundred seven thousand, six hundred thirty-one".