165144897060 has 432 divisors, whose sum is σ = 553480542720. Its totient is φ = 36747110400.

The previous prime is 165144897041. The next prime is 165144897131. The reversal of 165144897060 is 60798441561.

It is a junction number, because it is equal to n+sod(n) for n = 165144896994 and 165144897012.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 344769901 + ... + 344770379.

It is an arithmetic number, because the mean of its divisors is an integer number (1281204960).

Almost surely, 2^165144897060 is an apocalyptic number.

165144897060 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 165144897060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276740271360).

165144897060 is an abundant number, since it is smaller than the sum of its proper divisors (388335645660).

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

165144897060 is a wasteful number, since it uses less digits than its factorization.

165144897060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820 (or 794 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 51.

The spelling of 165144897060 in words is "one hundred sixty-five billion, one hundred forty-four million, eight hundred ninety-seven thousand, sixty".