556663311654645 has 64 divisors (see below), whose sum is σ = 1012066217164800. Its totient is φ = 259006332499200.

The previous prime is 556663311654629. The next prime is 556663311654661. The reversal of 556663311654645 is 546456113366655.

It is an interprime number because it is at equal distance from previous prime (556663311654629) and next prime (556663311654661).

It is not a de Polignac number, because 556663311654645 - 2⁴ = 556663311654629 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 177739381 + ... + 180844170.

It is an arithmetic number, because the mean of its divisors is an integer number (15813534643200).

Almost surely, 2^{556663311654645} is an apocalyptic number.

It is an amenable number.

556663311654645 is a deficient number, since it is larger than the sum of its proper divisors (455402905510155).

556663311654645 is a wasteful number, since it uses less digits than its factorization.

556663311654645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358584010.

The product of its digits is 699840000, while the sum is 66.

The spelling of 556663311654645 in words is "five hundred fifty-six trillion, six hundred sixty-three billion, three hundred eleven million, six hundred fifty-four thousand, six hundred forty-five".