165790000854 has 72 divisors (see below), whose sum is σ = 373882814760. Its totient is φ = 55133815104.

The previous prime is 165790000799. The next prime is 165790000897. The reversal of 165790000854 is 458000097561.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5667237 + ... + 5696415.

Almost surely, 2^165790000854 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165790000854, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186941407380).

165790000854 is an abundant number, since it is smaller than the sum of its proper divisors (208092813906).

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

165790000854 is an frugal number, since it uses more digits than its factorization.

165790000854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29638 (or 29617 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The spelling of 165790000854 in words is "one hundred sixty-five billion, seven hundred ninety million, eight hundred fifty-four", and thus it is an aban number.