55661550505106 has 16 divisors (see below), whose sum is σ = 102759785548224. Its totient is φ = 22019954045904.

The previous prime is 55661550505073. The next prime is 55661550505111. The reversal of 55661550505106 is 60150505516655.

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, 152916347360 + ... + 152916347723.

It is an arithmetic number, because the mean of its divisors is an integer number (6422486596764).

Almost surely, 2^{55661550505106} is an apocalyptic number.

55661550505106 is a deficient number, since it is larger than the sum of its proper divisors (47098235043118).

55661550505106 is a wasteful number, since it uses less digits than its factorization.

55661550505106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305832695105.

The product of its (nonzero) digits is 3375000, while the sum is 50.

The spelling of 55661550505106 in words is "fifty-five trillion, six hundred sixty-one billion, five hundred fifty million, five hundred five thousand, one hundred six".