165055161611018 has 8 divisors (see below), whose sum is σ = 282951705618912. Its totient is φ = 70737926404716.

The previous prime is 165055161611017. The next prime is 165055161611051. The reversal of 165055161611018 is 810116161550561.

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

It is a super-2 number, since 2×165055161611018² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (165055161611017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5894827200380 + ... + 5894827200407.

It is an arithmetic number, because the mean of its divisors is an integer number (35368963202364).

Almost surely, 2^{165055161611018} is an apocalyptic number.

165055161611018 is a deficient number, since it is larger than the sum of its proper divisors (117896544007894).

165055161611018 is a wasteful number, since it uses less digits than its factorization.

165055161611018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11789654400796.

The product of its (nonzero) digits is 216000, while the sum is 47.

The spelling of 165055161611018 in words is "one hundred sixty-five trillion, fifty-five billion, one hundred sixty-one million, six hundred eleven thousand, eighteen".