165415642264 has 8 divisors (see below), whose sum is σ = 310154329260. Its totient is φ = 82707821128.

The previous prime is 165415642247. The next prime is 165415642313. The reversal of 165415642264 is 462246514561.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×165415642264² (a number of 23 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 as a sum of consecutive naturals, namely, 10338477634 + ... + 10338477649.

Almost surely, 2^165415642264 is an apocalyptic number.

It is an amenable number.

165415642264 is a deficient number, since it is larger than the sum of its proper divisors (144738686996).

165415642264 is a wasteful number, since it uses less digits than its factorization.

165415642264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20676955289 (or 20676955285 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 46.

The spelling of 165415642264 in words is "one hundred sixty-five billion, four hundred fifteen million, six hundred forty-two thousand, two hundred sixty-four".