55651165161 has 8 divisors (see below), whose sum is σ = 74202878400. Its totient is φ = 37100114352.

The previous prime is 55651165159. The next prime is 55651165183. The reversal of 55651165161 is 16156115655.

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

It is not a de Polignac number, because 55651165161 - 2¹ = 55651165159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55651165111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84291 + ... + 344103.

It is an arithmetic number, because the mean of its divisors is an integer number (9275359800).

Almost surely, 2^55651165161 is an apocalyptic number.

It is an amenable number.

55651165161 is a deficient number, since it is larger than the sum of its proper divisors (18551713239).

55651165161 is a wasteful number, since it uses less digits than its factorization.

55651165161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331215.

The product of its digits is 135000, while the sum is 42.

The spelling of 55651165161 in words is "fifty-five billion, six hundred fifty-one million, one hundred sixty-five thousand, one hundred sixty-one".