56554660216 has 32 divisors (see below), whose sum is σ = 112018352400. Its totient is φ = 26693694720.

The previous prime is 56554660199. The next prime is 56554660219. The reversal of 56554660216 is 61206645565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56554660219) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 619335 + ... + 704758.

Almost surely, 2^56554660216 is an apocalyptic number.

It is an amenable number.

56554660216 is a deficient number, since it is larger than the sum of its proper divisors (55463692184).

56554660216 is a wasteful number, since it uses less digits than its factorization.

56554660216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1324399 (or 1324395 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 46.

The spelling of 56554660216 in words is "fifty-six billion, five hundred fifty-four million, six hundred sixty thousand, two hundred sixteen".