55666499996 has 12 divisors (see below), whose sum is σ = 97418057352. Its totient is φ = 27832769328.

The previous prime is 55666499921. The next prime is 55666500023. The reversal of 55666499996 is 69999466655.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317606 + ... + 460658.

It is an arithmetic number, because the mean of its divisors is an integer number (8118171446).

Almost surely, 2^55666499996 is an apocalyptic number.

It is an amenable number.

55666499996 is a deficient number, since it is larger than the sum of its proper divisors (41751557356).

55666499996 is a wasteful number, since it uses less digits than its factorization.

55666499996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240340 (or 240338 counting only the distinct ones).

The product of its digits is 850305600, while the sum is 74.

The spelling of 55666499996 in words is "fifty-five billion, six hundred sixty-six million, four hundred ninety-nine thousand, nine hundred ninety-six".