165085877 has 4 divisors (see below), whose sum is σ = 180093696. Its totient is φ = 150078060.

The previous prime is 165085867. The next prime is 165085909. The reversal of 165085877 is 778580561.

It is a happy number.

165085877 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 165085877 - 2⁸ = 165085621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165085847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7503893 + ... + 7503914.

It is an arithmetic number, because the mean of its divisors is an integer number (45023424).

Almost surely, 2^165085877 is an apocalyptic number.

It is an amenable number.

165085877 is a deficient number, since it is larger than the sum of its proper divisors (15007819).

165085877 is a wasteful number, since it uses less digits than its factorization.

165085877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15007818.

The product of its (nonzero) digits is 470400, while the sum is 47.

The square root of 165085877 is about 12848.5749015212. The cubic root of 165085877 is about 548.5757940391.

The spelling of 165085877 in words is "one hundred sixty-five million, eighty-five thousand, eight hundred seventy-seven".