160797780 has 144 divisors (see below), whose sum is σ = 573116544. Its totient is φ = 35976960.

The previous prime is 160797751. The next prime is 160797811. The reversal of 160797780 is 87797061.

It is a happy number.

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 47 ways as a sum of consecutive naturals, for example, 22617 + ... + 28863.

It is an arithmetic number, because the mean of its divisors is an integer number (3979976).

Almost surely, 2^160797780 is an apocalyptic number.

160797780 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 160797780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286558272).

160797780 is an abundant number, since it is smaller than the sum of its proper divisors (412318764).

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

160797780 is a wasteful number, since it uses less digits than its factorization.

160797780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6286 (or 6281 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 45.

The square root of 160797780 is about 12680.6064523744. The cubic root of 160797780 is about 543.7843228433.

The spelling of 160797780 in words is "one hundred sixty million, seven hundred ninety-seven thousand, seven hundred eighty".