57661005857671 has 8 divisors (see below), whose sum is σ = 59023820275200. Its totient is φ = 56299185112632.

The previous prime is 57661005857659. The next prime is 57661005857731. The reversal of 57661005857671 is 17675850016675.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57661005857671 - 2¹¹ = 57661005855623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57661005857641) 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, 248300695 + ... + 248532808.

It is an arithmetic number, because the mean of its divisors is an integer number (7377977534400).

Almost surely, 2^{57661005857671} is an apocalyptic number.

57661005857671 is a deficient number, since it is larger than the sum of its proper divisors (1362814417529).

57661005857671 is a wasteful number, since it uses less digits than its factorization.

57661005857671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496836245.

The product of its (nonzero) digits is 74088000, while the sum is 64.

The spelling of 57661005857671 in words is "fifty-seven trillion, six hundred sixty-one billion, five million, eight hundred fifty-seven thousand, six hundred seventy-one".