57316921301666 has 16 divisors (see below), whose sum is σ = 93317919120384. Its totient is φ = 26245664749584.

The previous prime is 57316921301513. The next prime is 57316921301669. The reversal of 57316921301666 is 66610312961375.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (57316921301669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8679118640 + ... + 8679125243.

It is an arithmetic number, because the mean of its divisors is an integer number (5832369945024).

Almost surely, 2^{57316921301666} is an apocalyptic number.

57316921301666 is a deficient number, since it is larger than the sum of its proper divisors (36000997818718).

57316921301666 is a wasteful number, since it uses less digits than its factorization.

57316921301666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17358244025.

The product of its (nonzero) digits is 7348320, while the sum is 56.

The spelling of 57316921301666 in words is "fifty-seven trillion, three hundred sixteen billion, nine hundred twenty-one million, three hundred one thousand, six hundred sixty-six".