55682866779 has 32 divisors (see below), whose sum is σ = 77620107264. Its totient is φ = 35465091840.

The previous prime is 55682866763. The next prime is 55682866849. The reversal of 55682866779 is 97766828655.

It is a happy number.

It is not a de Polignac number, because 55682866779 - 2⁴ = 55682866763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55682866739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19087629 + ... + 19090545.

It is an arithmetic number, because the mean of its divisors is an integer number (2425628352).

Almost surely, 2^55682866779 is an apocalyptic number.

55682866779 is a deficient number, since it is larger than the sum of its proper divisors (21937240485).

55682866779 is a wasteful number, since it uses less digits than its factorization.

55682866779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5507.

The product of its digits is 304819200, while the sum is 69.

The spelling of 55682866779 in words is "fifty-five billion, six hundred eighty-two million, eight hundred sixty-six thousand, seven hundred seventy-nine".