20266547232613 has 16 divisors (see below), whose sum is σ = 22897841011200. Its totient is φ = 17768205878080.

The previous prime is 20266547232599. The next prime is 20266547232643. The reversal of 20266547232613 is 31623274566202.

It is a cyclic number.

It is not a de Polignac number, because 20266547232613 - 2³⁷ = 20129108279141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20266547232643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36533218 + ... + 37083811.

It is an arithmetic number, because the mean of its divisors is an integer number (1431115063200).

Almost surely, 2^{20266547232613} is an apocalyptic number.

It is an amenable number.

20266547232613 is a deficient number, since it is larger than the sum of its proper divisors (2631293778587).

20266547232613 is a wasteful number, since it uses less digits than its factorization.

20266547232613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73617932.

The product of its (nonzero) digits is 4354560, while the sum is 49.

The spelling of 20266547232613 in words is "twenty trillion, two hundred sixty-six billion, five hundred forty-seven million, two hundred thirty-two thousand, six hundred thirteen".