20365642213 has 8 divisors (see below), whose sum is σ = 23277546432. Its totient is φ = 17454369696.

The previous prime is 20365642211. The next prime is 20365642313. The reversal of 20365642213 is 31224656302.

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

It is a cyclic number.

It is not a de Polignac number, because 20365642213 - 2¹ = 20365642211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20365642211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86695 + ... + 219652.

It is an arithmetic number, because the mean of its divisors is an integer number (2909693304).

Almost surely, 2^20365642213 is an apocalyptic number.

It is an amenable number.

20365642213 is a deficient number, since it is larger than the sum of its proper divisors (2911904219).

20365642213 is an equidigital number, since it uses as much as digits as its factorization.

20365642213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315851.

The product of its (nonzero) digits is 51840, while the sum is 34.

The spelling of 20365642213 in words is "twenty billion, three hundred sixty-five million, six hundred forty-two thousand, two hundred thirteen".