556674737123566 has 4 divisors (see below), whose sum is σ = 835012105685352. Its totient is φ = 278337368561782.

The previous prime is 556674737123513. The next prime is 556674737123567. The reversal of 556674737123566 is 665321737476655.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556674737123567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139168684280890 + ... + 139168684280893.

It is an arithmetic number, because the mean of its divisors is an integer number (208753026421338).

Almost surely, 2^{556674737123566} is an apocalyptic number.

556674737123566 is a deficient number, since it is larger than the sum of its proper divisors (278337368561786).

556674737123566 is a wasteful number, since it uses less digits than its factorization.

556674737123566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278337368561785.

The product of its digits is 4000752000, while the sum is 73.

The spelling of 556674737123566 in words is "five hundred fifty-six trillion, six hundred seventy-four billion, seven hundred thirty-seven million, one hundred twenty-three thousand, five hundred sixty-six".