165051056105108 has 24 divisors (see below), whose sum is σ = 292189915823400. Its totient is φ = 81568890833408.

The previous prime is 165051056105099. The next prime is 165051056105147. The reversal of 165051056105108 is 801501650150561.

It can be written as a sum of positive squares in 4 ways, for example, as 2188588854544 + 162862467250564 = 1479388^2 + 12761758^2 .

It is a super-2 number, since 2×165051056105108² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82487543 + ... + 84464766.

It is an arithmetic number, because the mean of its divisors is an integer number (12174579825975).

Almost surely, 2^{165051056105108} is an apocalyptic number.

It is an amenable number.

165051056105108 is a deficient number, since it is larger than the sum of its proper divisors (127138859718292).

165051056105108 is a wasteful number, since it uses less digits than its factorization.

165051056105108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166955179 (or 166955177 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 44.

The spelling of 165051056105108 in words is "one hundred sixty-five trillion, fifty-one billion, fifty-six million, one hundred five thousand, one hundred eight".