162540894720 has 160 divisors (see below), whose sum is σ = 526202392320. Its totient is φ = 42795417600.

The previous prime is 162540894709. The next prime is 162540894833. The reversal of 162540894720 is 27498045261.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 162540894720.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 472770 + ... + 740670.

It is an arithmetic number, because the mean of its divisors is an integer number (3288764952).

Almost surely, 2^162540894720 is an apocalyptic number.

162540894720 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 162540894720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (263101196160).

162540894720 is an abundant number, since it is smaller than the sum of its proper divisors (363661497600).

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

162540894720 is an equidigital number, since it uses as much as digits as its factorization.

162540894720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268006 (or 267990 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 162540894720 in words is "one hundred sixty-two billion, five hundred forty million, eight hundred ninety-four thousand, seven hundred twenty".