165242269806 has 32 divisors (see below), whose sum is σ = 349943237280. Its totient is φ = 51837981696.

The previous prime is 165242269781. The next prime is 165242269807. The reversal of 165242269806 is 608962242561.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165242269807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2880330 + ... + 2937138.

It is an arithmetic number, because the mean of its divisors is an integer number (10935726165).

Almost surely, 2^165242269806 is an apocalyptic number.

165242269806 is an abundant number, since it is smaller than the sum of its proper divisors (184700967474).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165242269806 is a wasteful number, since it uses less digits than its factorization.

165242269806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85348.

The product of its (nonzero) digits is 2488320, while the sum is 51.

The spelling of 165242269806 in words is "one hundred sixty-five billion, two hundred forty-two million, two hundred sixty-nine thousand, eight hundred six".