557720449976 has 8 divisors (see below), whose sum is σ = 1045725843720. Its totient is φ = 278860224984.

The previous prime is 557720449961. The next prime is 557720450011. The reversal of 557720449976 is 679944027755.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×557720449976² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34857528116 + ... + 34857528131.

It is an arithmetic number, because the mean of its divisors is an integer number (130715730465).

Almost surely, 2^557720449976 is an apocalyptic number.

It is an amenable number.

557720449976 is a deficient number, since it is larger than the sum of its proper divisors (488005393744).

557720449976 is a wasteful number, since it uses less digits than its factorization.

557720449976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69715056253 (or 69715056249 counting only the distinct ones).

The product of its (nonzero) digits is 133358400, while the sum is 65.

The spelling of 557720449976 in words is "five hundred fifty-seven billion, seven hundred twenty million, four hundred forty-nine thousand, nine hundred seventy-six".