165770019000 has 192 divisors, whose sum is σ = 568196441280. Its totient is φ = 43582560000.

The previous prime is 165770018993. The next prime is 165770019011. The reversal of 165770019000 is 910077561.

It is a super-2 number, since 2×165770019000² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 509290 + ... + 768710.

It is an arithmetic number, because the mean of its divisors is an integer number (2959356465).

Almost surely, 2^165770019000 is an apocalyptic number.

165770019000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165770019000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284098220640).

165770019000 is an abundant number, since it is smaller than the sum of its proper divisors (402426422280).

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

165770019000 is a wasteful number, since it uses less digits than its factorization.

165770019000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259519 (or 259502 counting only the distinct ones).

The product of its (nonzero) digits is 13230, while the sum is 36.

The spelling of 165770019000 in words is "one hundred sixty-five billion, seven hundred seventy million, nineteen thousand".