55665601171 has 8 divisors (see below), whose sum is σ = 56938420224. Its totient is φ = 54396467400.

The previous prime is 55665601163. The next prime is 55665601183. The reversal of 55665601171 is 17110656655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55665601171 - 2³ = 55665601163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55665601111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 890755 + ... + 951196.

It is an arithmetic number, because the mean of its divisors is an integer number (7117302528).

Almost surely, 2^55665601171 is an apocalyptic number.

55665601171 is a deficient number, since it is larger than the sum of its proper divisors (1272819053).

55665601171 is a wasteful number, since it uses less digits than its factorization.

55665601171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1842641.

The product of its (nonzero) digits is 189000, while the sum is 43.

The spelling of 55665601171 in words is "fifty-five billion, six hundred sixty-five million, six hundred one thousand, one hundred seventy-one".