55665165122 has 18 divisors (see below), whose sum is σ = 97134108633. Its totient is φ = 23855498352.

The previous prime is 55665165121. The next prime is 55665165131. The reversal of 55665165122 is 22156156655.

55665165122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 45830674561 + 9834490561 = 214081^2 + 99169^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=166831.

It is a super-2 number, since 2×55665165122² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55665165121) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2323718 + ... + 2347550.

Almost surely, 2^55665165122 is an apocalyptic number.

55665165122 is a deficient number, since it is larger than the sum of its proper divisors (41468943511).

55665165122 is an frugal number, since it uses more digits than its factorization.

55665165122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47682 (or 23842 counting only the distinct ones).

The product of its digits is 540000, while the sum is 44.

The spelling of 55665165122 in words is "fifty-five billion, six hundred sixty-five million, one hundred sixty-five thousand, one hundred twenty-two".