20163313491013 has 64 divisors (see below), whose sum is σ = 25533276088320. Its totient is φ = 15467020358400.

The previous prime is 20163313491001. The next prime is 20163313491023. The reversal of 20163313491013 is 31019431336102.

It is a cyclic number.

It is not a de Polignac number, because 20163313491013 - 2¹⁷ = 20163313359941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20163313491023) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2567589795 + ... + 2567597647.

It is an arithmetic number, because the mean of its divisors is an integer number (398957438880).

Almost surely, 2^{20163313491013} is an apocalyptic number.

It is an amenable number.

20163313491013 is a deficient number, since it is larger than the sum of its proper divisors (5369962597307).

20163313491013 is a wasteful number, since it uses less digits than its factorization.

20163313491013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9898.

The product of its (nonzero) digits is 34992, while the sum is 37.

The spelling of 20163313491013 in words is "twenty trillion, one hundred sixty-three billion, three hundred thirteen million, four hundred ninety-one thousand, thirteen".