165955038 has 16 divisors (see below), whose sum is σ = 332458896. Its totient is φ = 55226880.

The previous prime is 165955033. The next prime is 165955057. The reversal of 165955038 is 830559561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165955033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18883 + ... + 26238.

It is an arithmetic number, because the mean of its divisors is an integer number (20778681).

Almost surely, 2^165955038 is an apocalyptic number.

165955038 is an abundant number, since it is smaller than the sum of its proper divisors (166503858).

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

165955038 is a wasteful number, since it uses less digits than its factorization.

165955038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45739.

The product of its (nonzero) digits is 162000, while the sum is 42.

The square root of 165955038 is about 12882.3537445608. The cubic root of 165955038 is about 549.5368420376.

The spelling of 165955038 in words is "one hundred sixty-five million, nine hundred fifty-five thousand, thirty-eight".