57170661611 has 4 divisors (see below), whose sum is σ = 65337898992. Its totient is φ = 49003424232.

The previous prime is 57170661607. The next prime is 57170661617. The reversal of 57170661611 is 11616607175.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 57170661611 - 2² = 57170661607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57170661617) 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, 4083618680 + ... + 4083618693.

It is an arithmetic number, because the mean of its divisors is an integer number (16334474748).

Almost surely, 2^57170661611 is an apocalyptic number.

57170661611 is a deficient number, since it is larger than the sum of its proper divisors (8167237381).

57170661611 is an equidigital number, since it uses as much as digits as its factorization.

57170661611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8167237380.

The product of its (nonzero) digits is 52920, while the sum is 41.

The spelling of 57170661611 in words is "fifty-seven billion, one hundred seventy million, six hundred sixty-one thousand, six hundred eleven".