55128106959 has 16 divisors (see below), whose sum is σ = 73702742400. Its totient is φ = 36652828256.

The previous prime is 55128106921. The next prime is 55128106987. The reversal of 55128106959 is 95960182155.

It is a cyclic number.

It is not a de Polignac number, because 55128106959 - 2⁸ = 55128106703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55128106459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6246652 + ... + 6255470.

It is an arithmetic number, because the mean of its divisors is an integer number (4606421400).

Almost surely, 2^55128106959 is an apocalyptic number.

55128106959 is a deficient number, since it is larger than the sum of its proper divisors (18574635441).

55128106959 is a wasteful number, since it uses less digits than its factorization.

55128106959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14214.

The product of its (nonzero) digits is 972000, while the sum is 51.

The spelling of 55128106959 in words is "fifty-five billion, one hundred twenty-eight million, one hundred six thousand, nine hundred fifty-nine".