165157575000 has 192 divisors, whose sum is σ = 563003965440. Its totient is φ = 40038000000.

The previous prime is 165157574987. The next prime is 165157575029. The reversal of 165157575000 is 575751561.

It is a happy number.

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, 724905 + ... + 925095.

It is an arithmetic number, because the mean of its divisors is an integer number (2932312320).

Almost surely, 2^165157575000 is an apocalyptic number.

165157575000 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 165157575000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281501982720).

165157575000 is an abundant number, since it is smaller than the sum of its proper divisors (397846390440).

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

165157575000 is a wasteful number, since it uses less digits than its factorization.

165157575000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200236 (or 200212 counting only the distinct ones).

The product of its (nonzero) digits is 183750, while the sum is 42.

The spelling of 165157575000 in words is "one hundred sixty-five billion, one hundred fifty-seven million, five hundred seventy-five thousand".