55332065161 has 4 divisors (see below), whose sum is σ = 55376797252. Its totient is φ = 55287333072.

The previous prime is 55332065111. The next prime is 55332065189. The reversal of 55332065161 is 16156023355.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 51193587600 + 4138477561 = 226260^2 + 64331^2 .

It is a cyclic number.

It is not a de Polignac number, because 55332065161 - 2¹⁷ = 55331934089 is a prime.

It is a super-2 number, since 2×55332065161² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55332065161.

It is not an unprimeable number, because it can be changed into a prime (55332065111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22364190 + ... + 22366663.

It is an arithmetic number, because the mean of its divisors is an integer number (13844199313).

Almost surely, 2^55332065161 is an apocalyptic number.

It is an amenable number.

55332065161 is a deficient number, since it is larger than the sum of its proper divisors (44732091).

55332065161 is a wasteful number, since it uses less digits than its factorization.

55332065161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44732090.

The product of its (nonzero) digits is 81000, while the sum is 37.

The spelling of 55332065161 in words is "fifty-five billion, three hundred thirty-two million, sixty-five thousand, one hundred sixty-one".