160642205779920 has 160 divisors (see below), whose sum is σ = 499971239614080. Its totient is φ = 42667592908800.

The previous prime is 160642205779901. The next prime is 160642205779931. The reversal of 160642205779920 is 29977502246061.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 764788671 + ... + 764998689.

It is an arithmetic number, because the mean of its divisors is an integer number (3124820247588).

Almost surely, 2^{160642205779920} is an apocalyptic number.

160642205779920 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 160642205779920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249985619807040).

160642205779920 is an abundant number, since it is smaller than the sum of its proper divisors (339329033834160).

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

160642205779920 is a wasteful number, since it uses less digits than its factorization.

160642205779920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222693 (or 222687 counting only the distinct ones).

The product of its (nonzero) digits is 22861440, while the sum is 60.

The spelling of 160642205779920 in words is "one hundred sixty trillion, six hundred forty-two billion, two hundred five million, seven hundred seventy-nine thousand, nine hundred twenty".