557666255703 has 16 divisors (see below), whose sum is σ = 745718044896. Its totient is φ = 370697518080.

The previous prime is 557666255683. The next prime is 557666255737. The reversal of 557666255703 is 307552666755.

It is a happy number.

It is not a de Polignac number, because 557666255703 - 2⁹ = 557666255191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557664255703) 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, 1269651 + ... + 1651467.

It is an arithmetic number, because the mean of its divisors is an integer number (46607377806).

Almost surely, 2^557666255703 is an apocalyptic number.

557666255703 is a deficient number, since it is larger than the sum of its proper divisors (188051789193).

557666255703 is a wasteful number, since it uses less digits than its factorization.

557666255703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383234.

The product of its (nonzero) digits is 39690000, while the sum is 57.

It can be divided in two parts, 5576662 and 55703, that added together give a palindrome (5632365).

The spelling of 557666255703 in words is "five hundred fifty-seven billion, six hundred sixty-six million, two hundred fifty-five thousand, seven hundred three".