165670044 has 24 divisors (see below), whose sum is σ = 406909440. Its totient is φ = 52316784.

The previous prime is 165670027. The next prime is 165670073. The reversal of 165670044 is 440076561.

It is a junction number, because it is equal to n+sod(n) for n = 165669987 and 165670014.

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, 363084 + ... + 363539.

It is an arithmetic number, because the mean of its divisors is an integer number (16954560).

Almost surely, 2^165670044 is an apocalyptic number.

It is an amenable number.

165670044 is an abundant number, since it is smaller than the sum of its proper divisors (241239396).

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

165670044 is a wasteful number, since it uses less digits than its factorization.

165670044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726649 (or 726647 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 165670044 is about 12871.2875812795. The cubic root of 165670044 is about 549.2220892355. Note that the first 3 decimals are identical.

The spelling of 165670044 in words is "one hundred sixty-five million, six hundred seventy thousand, forty-four".