162730439280 has 120 divisors (see below), whose sum is σ = 547590764448. Its totient is φ = 43308415488.

The previous prime is 162730439273. The next prime is 162730439353. The reversal of 162730439280 is 82934037261.

162730439280 is a `hidden beast` number, since 1 + 62 + 7 + 304 + 3 + 9 + 280 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

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 23 ways as a sum of consecutive naturals, for example, 137494 + ... + 586826.

Almost surely, 2^162730439280 is an apocalyptic number.

162730439280 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 162730439280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273795382224).

162730439280 is an abundant number, since it is smaller than the sum of its proper divisors (384860325168).

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

162730439280 is a wasteful number, since it uses less digits than its factorization.

162730439280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449855 (or 449846 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 162730439280 in words is "one hundred sixty-two billion, seven hundred thirty million, four hundred thirty-nine thousand, two hundred eighty".