165227307774 has 64 divisors (see below), whose sum is σ = 343882506240. Its totient is φ = 52868160000.

The previous prime is 165227307719. The next prime is 165227307797. The reversal of 165227307774 is 477703722561.

It is a happy number.

165227307774 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 31 ways as a sum of consecutive naturals, for example, 13493947 + ... + 13506185.

It is an arithmetic number, because the mean of its divisors is an integer number (5373164160).

Almost surely, 2^165227307774 is an apocalyptic number.

165227307774 is an abundant number, since it is smaller than the sum of its proper divisors (178655198466).

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

165227307774 is a wasteful number, since it uses less digits than its factorization.

165227307774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12857.

The product of its (nonzero) digits is 3457440, while the sum is 51.

The spelling of 165227307774 in words is "one hundred sixty-five billion, two hundred twenty-seven million, three hundred seven thousand, seven hundred seventy-four".