165055500605055 has 32 divisors (see below), whose sum is σ = 279689999295168. Its totient is φ = 82831666176000.

The previous prime is 165055500605033. The next prime is 165055500605057. The reversal of 165055500605055 is 550506005550561.

It is not a de Polignac number, because 165055500605055 - 2⁷ = 165055500604927 is a prime.

It is a super-2 number, since 2×165055500605055² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 165055500604995 and 165055500605013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165055500605057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75967126 + ... + 78109635.

It is an arithmetic number, because the mean of its divisors is an integer number (8740312477974).

Almost surely, 2^{165055500605055} is an apocalyptic number.

165055500605055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

165055500605055 is a deficient number, since it is larger than the sum of its proper divisors (114634498690113).

165055500605055 is a wasteful number, since it uses less digits than its factorization.

165055500605055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154080987.

The product of its (nonzero) digits is 2812500, while the sum is 48.

The spelling of 165055500605055 in words is "one hundred sixty-five trillion, fifty-five billion, five hundred million, six hundred five thousand, fifty-five".