165377015135 has 16 divisors (see below), whose sum is σ = 203815422720. Its totient is φ = 128742869760.

The previous prime is 165377015117. The next prime is 165377015201. The reversal of 165377015135 is 531510773561.

It is a happy number.

It is not a de Polignac number, because 165377015135 - 2¹⁶ = 165376949599 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 957167 + ... + 1116656.

It is an arithmetic number, because the mean of its divisors is an integer number (12738463920).

Almost surely, 2^165377015135 is an apocalyptic number.

165377015135 is a deficient number, since it is larger than the sum of its proper divisors (38438407585).

165377015135 is a wasteful number, since it uses less digits than its factorization.

165377015135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2074258.

The product of its (nonzero) digits is 330750, while the sum is 44.

Adding to 165377015135 its reverse (531510773561), we get a palindrome (696887788696).

The spelling of 165377015135 in words is "one hundred sixty-five billion, three hundred seventy-seven million, fifteen thousand, one hundred thirty-five".