165226770 has 32 divisors (see below), whose sum is σ = 440605440. Its totient is φ = 44060400.

The previous prime is 165226751. The next prime is 165226781. The reversal of 165226770 is 77622561.

165226770 is a `hidden beast` number, since 1 + 6 + 522 + 67 + 70 = 666.

It is a zygodrome in base 8.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 305706 + ... + 306245.

It is an arithmetic number, because the mean of its divisors is an integer number (13768920).

Almost surely, 2^165226770 is an apocalyptic number.

165226770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165226770 is an abundant number, since it is smaller than the sum of its proper divisors (275378670).

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

165226770 is a wasteful number, since it uses less digits than its factorization.

165226770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611967 (or 611961 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 165226770 is about 12854.0565581454. The cubic root of 165226770 is about 548.7318108413.

The spelling of 165226770 in words is "one hundred sixty-five million, two hundred twenty-six thousand, seven hundred seventy".