20361313356501 has 16 divisors (see below), whose sum is σ = 29237447960000. Its totient is φ = 12529743137280.

The previous prime is 20361313356473. The next prime is 20361313356511. The reversal of 20361313356501 is 10565331316302.

It is a de Polignac number, because none of the positive numbers 2^k-20361313356501 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

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 20361313356501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20361313356511) 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, 4484860 + ... + 7799781.

It is an arithmetic number, because the mean of its divisors is an integer number (1827340497500).

Almost surely, 2^{20361313356501} is an apocalyptic number.

It is an amenable number.

20361313356501 is a deficient number, since it is larger than the sum of its proper divisors (8876134603499).

20361313356501 is a wasteful number, since it uses less digits than its factorization.

20361313356501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12327156.

The product of its (nonzero) digits is 145800, while the sum is 39.

The spelling of 20361313356501 in words is "twenty trillion, three hundred sixty-one billion, three hundred thirteen million, three hundred fifty-six thousand, five hundred one".