20182371057 has 24 divisors (see below), whose sum is σ = 29521739520. Its totient is φ = 13285059840.

The previous prime is 20182371047. The next prime is 20182371059. The reversal of 20182371057 is 75017328102.

20182371057 is a `hidden beast` number, since 201 + 82 + 371 + 0 + 5 + 7 = 666.

It is not a de Polignac number, because 20182371057 - 2⁸ = 20182370801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20182371059) 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 23 ways as a sum of consecutive naturals, for example, 349444 + ... + 403082.

It is an arithmetic number, because the mean of its divisors is an integer number (1230072480).

Almost surely, 2^20182371057 is an apocalyptic number.

It is an amenable number.

20182371057 is a deficient number, since it is larger than the sum of its proper divisors (9339368463).

20182371057 is a wasteful number, since it uses less digits than its factorization.

20182371057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54173 (or 54170 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

Adding to 20182371057 its reverse (75017328102), we get a palindrome (95199699159).

The spelling of 20182371057 in words is "twenty billion, one hundred eighty-two million, three hundred seventy-one thousand, fifty-seven".