57172210320 has 40 divisors (see below), whose sum is σ = 177233852736. Its totient is φ = 15245922688.

The previous prime is 57172210237. The next prime is 57172210327. The reversal of 57172210320 is 2301227175.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (57172210327) 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 7 ways as a sum of consecutive naturals, for example, 119108532 + ... + 119109011.

Almost surely, 2^57172210320 is an apocalyptic number.

It is an amenable number.

57172210320 is an abundant number, since it is smaller than the sum of its proper divisors (120061642416).

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

57172210320 is a wasteful number, since it uses less digits than its factorization.

57172210320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238217559 (or 238217553 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 30.

Adding to 57172210320 its reverse (2301227175), we get a palindrome (59473437495).

The spelling of 57172210320 in words is "fifty-seven billion, one hundred seventy-two million, two hundred ten thousand, three hundred twenty".