165122772300 has 108 divisors (see below), whose sum is σ = 535415418720. Its totient is φ = 42514362240.

The previous prime is 165122772277. The next prime is 165122772317. The reversal of 165122772300 is 3277221561.

165122772300 is a `hidden beast` number, since 1 + 65 + 1 + 227 + 72 + 300 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3137172 + ... + 3189371.

Almost surely, 2^165122772300 is an apocalyptic number.

165122772300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165122772300 is an abundant number, since it is smaller than the sum of its proper divisors (370292646420).

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

165122772300 is a wasteful number, since it uses less digits than its factorization.

165122772300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6326592 (or 6326582 counting only the distinct ones).

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

Adding to 165122772300 its reverse (3277221561), we get a palindrome (168399993861).

The spelling of 165122772300 in words is "one hundred sixty-five billion, one hundred twenty-two million, seven hundred seventy-two thousand, three hundred".