20057145676 has 12 divisors (see below), whose sum is σ = 36626092272. Its totient is φ = 9592547888.

The previous prime is 20057145671. The next prime is 20057145679. The reversal of 20057145676 is 67654175002.

It is not an unprimeable number, because it can be changed into a prime (20057145671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109006135 + ... + 109006318.

It is an arithmetic number, because the mean of its divisors is an integer number (3052174356).

Almost surely, 2^20057145676 is an apocalyptic number.

It is an amenable number.

20057145676 is a deficient number, since it is larger than the sum of its proper divisors (16568946596).

20057145676 is a wasteful number, since it uses less digits than its factorization.

20057145676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218012480 (or 218012478 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 43.

The spelling of 20057145676 in words is "twenty billion, fifty-seven million, one hundred forty-five thousand, six hundred seventy-six".