20136537315634 has 8 divisors (see below), whose sum is σ = 30204825160320. Its totient is φ = 10068262262196.

The previous prime is 20136537315593. The next prime is 20136537315667. The reversal of 20136537315634 is 43651373563102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3803847 + ... + 7398805.

It is an arithmetic number, because the mean of its divisors is an integer number (3775603145040).

Almost surely, 2^{20136537315634} is an apocalyptic number.

20136537315634 is a deficient number, since it is larger than the sum of its proper divisors (10068287844686).

20136537315634 is a wasteful number, since it uses less digits than its factorization.

20136537315634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6395624.

The product of its (nonzero) digits is 4082400, while the sum is 49.

The spelling of 20136537315634 in words is "twenty trillion, one hundred thirty-six billion, five hundred thirty-seven million, three hundred fifteen thousand, six hundred thirty-four".