20057575777776 has 30 divisors (see below), whose sum is σ = 56133354434040. Its totient is φ = 6685858592544.

The previous prime is 20057575777739. The next prime is 20057575777801. The reversal of 20057575777776 is 67777757575002.

It is a super-2 number, since 2×20057575777776² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 69644360196 + ... + 69644360483.

It is an arithmetic number, because the mean of its divisors is an integer number (1871111814468).

Almost surely, 2^{20057575777776} is an apocalyptic number.

It is an amenable number.

20057575777776 is an abundant number, since it is smaller than the sum of its proper divisors (36075778656264).

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

20057575777776 is a wasteful number, since it uses less digits than its factorization.

20057575777776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139288720693 (or 139288720684 counting only the distinct ones).

The product of its (nonzero) digits is 1235314500, while the sum is 72.

The spelling of 20057575777776 in words is "twenty trillion, fifty-seven billion, five hundred seventy-five million, seven hundred seventy-seven thousand, seven hundred seventy-six".