557645055777423 has 16 divisors (see below), whose sum is σ = 826155436477440. Its totient is φ = 371756794621752.

The previous prime is 557645055777401. The next prime is 557645055777427. The reversal of 557645055777423 is 324777550546755.

557645055777423 is a `hidden beast` number, since 5 + 5 + 7 + 6 + 4 + 5 + 0 + 5 + 577 + 7 + 42 + 3 = 666.

It is not a de Polignac number, because 557645055777423 - 2¹⁷ = 557645055646351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557645055777427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 181108861 + ... + 184162182.

It is an arithmetic number, because the mean of its divisors is an integer number (51634714779840).

Almost surely, 2^{557645055777423} is an apocalyptic number.

557645055777423 is a deficient number, since it is larger than the sum of its proper divisors (268510380700017).

557645055777423 is a wasteful number, since it uses less digits than its factorization.

557645055777423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365327595 (or 365327589 counting only the distinct ones).

The product of its (nonzero) digits is 4321800000, while the sum is 72.

The spelling of 557645055777423 in words is "five hundred fifty-seven trillion, six hundred forty-five billion, fifty-five million, seven hundred seventy-seven thousand, four hundred twenty-three".