20533401313919 has 16 divisors (see below), whose sum is σ = 22313957205792. Its totient is φ = 18782333042688.

The previous prime is 20533401313891. The next prime is 20533401313963. The reversal of 20533401313919 is 91931310433502.

It is a cyclic number.

It is not a de Polignac number, because 20533401313919 - 2⁴⁰ = 19433889686143 is a prime.

It is a super-2 number, since 2×20533401313919² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20533401313919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20533401313969) 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, 15277169 + ... + 16566794.

It is an arithmetic number, because the mean of its divisors is an integer number (1394622325362).

Almost surely, 2^{20533401313919} is an apocalyptic number.

20533401313919 is a deficient number, since it is larger than the sum of its proper divisors (1780555891873).

20533401313919 is a wasteful number, since it uses less digits than its factorization.

20533401313919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31844426.

The product of its (nonzero) digits is 262440, while the sum is 44.

The spelling of 20533401313919 in words is "twenty trillion, five hundred thirty-three billion, four hundred one million, three hundred thirteen thousand, nine hundred nineteen".