556461957945 has 16 divisors (see below), whose sum is σ = 890547599232. Its totient is φ = 296710222080.

The previous prime is 556461957941. The next prime is 556461958007. The reversal of 556461957945 is 549759164655.

It is not a de Polignac number, because 556461957945 - 2² = 556461957941 is a prime.

It is not an unprimeable number, because it can be changed into a prime (556461957941) 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, 4276821 + ... + 4405010.

It is an arithmetic number, because the mean of its divisors is an integer number (55659224952).

Almost surely, 2^556461957945 is an apocalyptic number.

It is an amenable number.

556461957945 is a deficient number, since it is larger than the sum of its proper divisors (334085641287).

556461957945 is a wasteful number, since it uses less digits than its factorization.

556461957945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8686112.

The product of its digits is 204120000, while the sum is 66.

The spelling of 556461957945 in words is "five hundred fifty-six billion, four hundred sixty-one million, nine hundred fifty-seven thousand, nine hundred forty-five".