55766879999 has 8 divisors (see below), whose sum is σ = 57597432912. Its totient is φ = 53965154880.

The previous prime is 55766879989. The next prime is 55766880017. The reversal of 55766879999 is 99997866755.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55766879999 - 2¹² = 55766875903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55766879989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7203017 + ... + 7210754.

It is an arithmetic number, because the mean of its divisors is an integer number (7199679114).

Almost surely, 2^55766879999 is an apocalyptic number.

55766879999 is a deficient number, since it is larger than the sum of its proper divisors (1830552913).

55766879999 is a wasteful number, since it uses less digits than its factorization.

55766879999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14413897.

The product of its digits is 2314720800, while the sum is 80.

The spelling of 55766879999 in words is "fifty-five billion, seven hundred sixty-six million, eight hundred seventy-nine thousand, nine hundred ninety-nine".