165426831360 has 1120 divisors, whose sum is σ = 719352627840. Its totient is φ = 35502686208.

The previous prime is 165426831337. The next prime is 165426831421. The reversal of 165426831360 is 63138624561.

165426831360 is a `hidden beast` number, since 16 + 5 + 4 + 268 + 313 + 60 = 666.

It is a tau number, because it is divible by the number of its divisors (1120).

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 79 ways as a sum of consecutive naturals, for example, 394813231 + ... + 394813649.

It is an arithmetic number, because the mean of its divisors is an integer number (642279132).

Almost surely, 2^165426831360 is an apocalyptic number.

165426831360 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 165426831360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (359676313920).

165426831360 is an abundant number, since it is smaller than the sum of its proper divisors (553925796480).

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

165426831360 is an equidigital number, since it uses as much as digits as its factorization.

165426831360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486 (or 453 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 165426831360 in words is "one hundred sixty-five billion, four hundred twenty-six million, eight hundred thirty-one thousand, three hundred sixty".