162506665000 has 80 divisors (see below), whose sum is σ = 380888717220. Its totient is φ = 64979520000.

The previous prime is 162506664989. The next prime is 162506665019. The reversal of 162506665000 is 566605261.

It can be written as a sum of positive squares in 10 ways, for example, as 2063158084 + 160443506916 = 45422^2 + 400554^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 23961610 + ... + 23968390.

Almost surely, 2^162506665000 is an apocalyptic number.

162506665000 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 162506665000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190444358610).

162506665000 is an abundant number, since it is smaller than the sum of its proper divisors (218382052220).

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

162506665000 is an equidigital number, since it uses as much as digits as its factorization.

162506665000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11600 (or 11581 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 162506665000 in words is "one hundred sixty-two billion, five hundred six million, six hundred sixty-five thousand".