165670612765 has 48 divisors (see below), whose sum is σ = 247528811520. Its totient is φ = 104151640320.

The previous prime is 165670612763. The next prime is 165670612787. The reversal of 165670612765 is 567216076561.

It is not a de Polignac number, because 165670612765 - 2¹ = 165670612763 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165670612763) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 180201 + ... + 603169.

It is an arithmetic number, because the mean of its divisors is an integer number (5156850240).

Almost surely, 2^165670612765 is an apocalyptic number.

It is an amenable number.

165670612765 is a deficient number, since it is larger than the sum of its proper divisors (81858198755).

165670612765 is a wasteful number, since it uses less digits than its factorization.

165670612765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423050 (or 423031 counting only the distinct ones).

The product of its (nonzero) digits is 3175200, while the sum is 52.

The spelling of 165670612765 in words is "one hundred sixty-five billion, six hundred seventy million, six hundred twelve thousand, seven hundred sixty-five".