165326316020050 has 24 divisors (see below), whose sum is σ = 307833735289572. Its totient is φ = 66060249528000.

The previous prime is 165326316019993. The next prime is 165326316020093. The reversal of 165326316020050 is 50020613623561.

It can be written as a sum of positive squares in 6 ways, for example, as 88108954169769 + 77217361850281 = 9386637^2 + 8787341^2 .

It is a super-2 number, since 2×165326316020050² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 165326316019985 and 165326316020012.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1756874481 + ... + 1756968580.

Almost surely, 2^{165326316020050} is an apocalyptic number.

165326316020050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165326316020050 is a deficient number, since it is larger than the sum of its proper divisors (142507419269522).

165326316020050 is a wasteful number, since it uses less digits than its factorization.

165326316020050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3513844014 (or 3513844009 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 40.

The spelling of 165326316020050 in words is "one hundred sixty-five trillion, three hundred twenty-six billion, three hundred sixteen million, twenty thousand, fifty".