55179921154 has 16 divisors (see below), whose sum is σ = 83182236480. Its totient is φ = 27452572560.

The previous prime is 55179921149. The next prime is 55179921221. The reversal of 55179921154 is 45112997155.

55179921154 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 55179921098 and 55179921107.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2055732 + ... + 2082400.

It is an arithmetic number, because the mean of its divisors is an integer number (5198889780).

Almost surely, 2^55179921154 is an apocalyptic number.

55179921154 is a deficient number, since it is larger than the sum of its proper divisors (28002315326).

55179921154 is a wasteful number, since it uses less digits than its factorization.

55179921154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31785.

The product of its digits is 567000, while the sum is 49.

The spelling of 55179921154 in words is "fifty-five billion, one hundred seventy-nine million, nine hundred twenty-one thousand, one hundred fifty-four".