165145623135 has 8 divisors (see below), whose sum is σ = 264232997040. Its totient is φ = 88077665664.

The previous prime is 165145623113. The next prime is 165145623199. The reversal of 165145623135 is 531326541561.

It is a happy number.

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

It is not a de Polignac number, because 165145623135 - 2⁹ = 165145622623 is a prime.

It is a congruent number.

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, 5504854090 + ... + 5504854119.

It is an arithmetic number, because the mean of its divisors is an integer number (33029124630).

Almost surely, 2^165145623135 is an apocalyptic number.

165145623135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

165145623135 is a deficient number, since it is larger than the sum of its proper divisors (99087373905).

165145623135 is a wasteful number, since it uses less digits than its factorization.

165145623135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11009708217.

The product of its digits is 324000, while the sum is 42.

The spelling of 165145623135 in words is "one hundred sixty-five billion, one hundred forty-five million, six hundred twenty-three thousand, one hundred thirty-five".