55996149979 has 36 divisors (see below), whose sum is σ = 71659493472. Its totient is φ = 43596131040.

The previous prime is 55996149973. The next prime is 55996150031. The reversal of 55996149979 is 97994169955.

It is not a de Polignac number, because 55996149979 - 2³ = 55996149971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55996149971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8433649 + ... + 8440285.

Almost surely, 2^55996149979 is an apocalyptic number.

55996149979 is a deficient number, since it is larger than the sum of its proper divisors (15663343493).

55996149979 is a wasteful number, since it uses less digits than its factorization.

55996149979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8096 (or 8078 counting only the distinct ones).

The product of its digits is 248005800, while the sum is 73.

The spelling of 55996149979 in words is "fifty-five billion, nine hundred ninety-six million, one hundred forty-nine thousand, nine hundred seventy-nine".