165713647364 has 12 divisors (see below), whose sum is σ = 290305118544. Its totient is φ = 82769327784.

The previous prime is 165713647361. The next prime is 165713647369. The reversal of 165713647364 is 463746317561.

It is a super-2 number, since 2×165713647364² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (165713647361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21869714 + ... + 21877289.

It is an arithmetic number, because the mean of its divisors is an integer number (24192093212).

Almost surely, 2^165713647364 is an apocalyptic number.

It is an amenable number.

165713647364 is a deficient number, since it is larger than the sum of its proper divisors (124591471180).

165713647364 is a wasteful number, since it uses less digits than its factorization.

165713647364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43747954 (or 43747952 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 53.

The spelling of 165713647364 in words is "one hundred sixty-five billion, seven hundred thirteen million, six hundred forty-seven thousand, three hundred sixty-four".