557691492961 has 8 divisors (see below), whose sum is σ = 572792652224. Its totient is φ = 542591829360.

The previous prime is 557691492959. The next prime is 557691493003. The reversal of 557691492961 is 169294196755.

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 557691492961 - 2¹ = 557691492959 is a prime.

It is a super-2 number, since 2×557691492961² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 557691492893 and 557691492902.

It is not an unprimeable number, because it can be changed into a prime (557691496961) 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, 403516 + ... + 1130578.

It is an arithmetic number, because the mean of its divisors is an integer number (71599081528).

Almost surely, 2^557691492961 is an apocalyptic number.

It is an amenable number.

557691492961 is a deficient number, since it is larger than the sum of its proper divisors (15101159263).

557691492961 is a wasteful number, since it uses less digits than its factorization.

557691492961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747831.

The product of its digits is 36741600, while the sum is 64.

The spelling of 557691492961 in words is "five hundred fifty-seven billion, six hundred ninety-one million, four hundred ninety-two thousand, nine hundred sixty-one".