20013773516620 has 48 divisors (see below), whose sum is σ = 47229828085440. Its totient is φ = 7068409641216.

The previous prime is 20013773516603. The next prime is 20013773516621. The reversal of 20013773516620 is 2661537731002.

It is a super-2 number, since 2×20013773516620² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20013773516621) 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, 1673386455 + ... + 1673398414.

It is an arithmetic number, because the mean of its divisors is an integer number (983954751780).

Almost surely, 2^{20013773516620} is an apocalyptic number.

20013773516620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20013773516620 is an abundant number, since it is smaller than the sum of its proper divisors (27216054568820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20013773516620 is a wasteful number, since it uses less digits than its factorization.

20013773516620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3346784914 (or 3346784912 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 43.

The spelling of 20013773516620 in words is "twenty trillion, thirteen billion, seven hundred seventy-three million, five hundred sixteen thousand, six hundred twenty".