162255870 has 192 divisors, whose sum is σ = 509483520. Its totient is φ = 35046144.

The previous prime is 162255857. The next prime is 162255911. The reversal of 162255870 is 78552261.

It is a happy number.

162255870 is a `hidden beast` number, since 16 + 22 + 558 + 70 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1516357 + ... + 1516463.

It is an arithmetic number, because the mean of its divisors is an integer number (2653560).

Almost surely, 2^162255870 is an apocalyptic number.

162255870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 162255870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254741760).

162255870 is an abundant number, since it is smaller than the sum of its proper divisors (347227650).

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

162255870 is a wasteful number, since it uses less digits than its factorization.

162255870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239 (or 236 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 162255870 is about 12737.9696184282. The cubic root of 162255870 is about 545.4230309823.

The spelling of 162255870 in words is "one hundred sixty-two million, two hundred fifty-five thousand, eight hundred seventy".