165001466880 has 704 divisors, whose sum is σ = 631605288960. Its totient is φ = 40697856000.

The previous prime is 165001466873. The next prime is 165001466893. The reversal of 165001466880 is 88664100561.

165001466880 is a `hidden beast` number, since 1 + 6 + 500 + 1 + 4 + 6 + 68 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 143354305 + ... + 143355455.

Almost surely, 2^165001466880 is an apocalyptic number.

165001466880 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 165001466880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (315802644480).

165001466880 is an abundant number, since it is smaller than the sum of its proper divisors (466603822080).

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

165001466880 is a wasteful number, since it uses less digits than its factorization.

165001466880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1263 (or 1239 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The spelling of 165001466880 in words is "one hundred sixty-five billion, one million, four hundred sixty-six thousand, eight hundred eighty".