557166637774 has 4 divisors (see below), whose sum is σ = 835749956664. Its totient is φ = 278583318886.

The previous prime is 557166637693. The next prime is 557166637837. The reversal of 557166637774 is 477736661755.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139291659442 + ... + 139291659445.

It is an arithmetic number, because the mean of its divisors is an integer number (208937489166).

Almost surely, 2^557166637774 is an apocalyptic number.

557166637774 is a deficient number, since it is larger than the sum of its proper divisors (278583318890).

557166637774 is a wasteful number, since it uses less digits than its factorization.

557166637774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278583318889.

The product of its digits is 155584800, while the sum is 64.

The spelling of 557166637774 in words is "five hundred fifty-seven billion, one hundred sixty-six million, six hundred thirty-seven thousand, seven hundred seventy-four".