20173057161586 has 24 divisors (see below), whose sum is σ = 36335407769856. Its totient is φ = 8366705733960.

The previous prime is 20173057161583. The next prime is 20173057161601. The reversal of 20173057161586 is 68516175037102.

It is not an unprimeable number, because it can be changed into a prime (20173057161583) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3320118286 + ... + 3320124361.

It is an arithmetic number, because the mean of its divisors is an integer number (1513975323744).

Almost surely, 2^{20173057161586} is an apocalyptic number.

20173057161586 is a deficient number, since it is larger than the sum of its proper divisors (16162350608270).

20173057161586 is a wasteful number, since it uses less digits than its factorization.

20173057161586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6640242694 (or 6640242687 counting only the distinct ones).

The product of its (nonzero) digits is 2116800, while the sum is 52.

The spelling of 20173057161586 in words is "twenty trillion, one hundred seventy-three billion, fifty-seven million, one hundred sixty-one thousand, five hundred eighty-six".