165564316432534 has 8 divisors (see below), whose sum is σ = 261417341735640. Its totient is φ = 78425202520656.

The previous prime is 165564316432523. The next prime is 165564316432579. The reversal of 165564316432534 is 435234613465561.

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

It is a super-2 number, since 2×165564316432534² (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 3 ways as a sum of consecutive naturals, for example, 2178477847759 + ... + 2178477847834.

It is an arithmetic number, because the mean of its divisors is an integer number (32677167716955).

Almost surely, 2^{165564316432534} is an apocalyptic number.

165564316432534 is a deficient number, since it is larger than the sum of its proper divisors (95853025303106).

165564316432534 is a wasteful number, since it uses less digits than its factorization.

165564316432534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4356955695614.

The product of its digits is 93312000, while the sum is 58.

The spelling of 165564316432534 in words is "one hundred sixty-five trillion, five hundred sixty-four billion, three hundred sixteen million, four hundred thirty-two thousand, five hundred thirty-four".