279939169222160 has 480 divisors, whose sum is σ = 798393092428800. Its totient is φ = 90896137113600.

The previous prime is 279939169222133. The next prime is 279939169222169. The reversal of 279939169222160 is 61222961939972.

It is not an unprimeable number, because it can be changed into a prime (279939169222169) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1460209991 + ... + 1460401689.

It is an arithmetic number, because the mean of its divisors is an integer number (1663318942560).

Almost surely, 2^{279939169222160} is an apocalyptic number.

279939169222160 is a gapful number since it is divisible by the number (20) 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 279939169222160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (399196546214400).

279939169222160 is an abundant number, since it is smaller than the sum of its proper divisors (518453923206640).

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

279939169222160 is a wasteful number, since it uses less digits than its factorization.

279939169222160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192015 (or 192002 counting only the distinct ones).

The product of its (nonzero) digits is 79361856, while the sum is 68.

The spelling of 279939169222160 in words is "two hundred seventy-nine trillion, nine hundred thirty-nine billion, one hundred sixty-nine million, two hundred twenty-two thousand, one hundred sixty".