165930738065 has 8 divisors (see below), whose sum is σ = 199125659880. Its totient is φ = 132738740992.

The previous prime is 165930738047. The next prime is 165930738073. The reversal of 165930738065 is 560837039561.

It can be written as a sum of positive squares in 4 ways, for example, as 62215823761 + 103714914304 = 249431^2 + 322048^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 165930738065 - 2⁸ = 165930737809 is a prime.

It is a super-4 number, since 4×165930738065⁴ (a number of 46 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 165930737998 and 165930738016.

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, 604370 + ... + 834939.

It is an arithmetic number, because the mean of its divisors is an integer number (24890707485).

Almost surely, 2^165930738065 is an apocalyptic number.

It is an amenable number.

165930738065 is a deficient number, since it is larger than the sum of its proper divisors (33194921815).

165930738065 is a wasteful number, since it uses less digits than its factorization.

165930738065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1462371.

The product of its (nonzero) digits is 4082400, while the sum is 53.

The spelling of 165930738065 in words is "one hundred sixty-five billion, nine hundred thirty million, seven hundred thirty-eight thousand, sixty-five".