663277122 has 12 divisors (see below), whose sum is σ = 1437100470. Its totient is φ = 221092368.

The previous prime is 663277093. The next prime is 663277123. The reversal of 663277122 is 221772366.

It is a happy number.

663277122 is a `hidden beast` number, since 6 + 632 + 7 + 7 + 12 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 635493681 + 27783441 = 25209^2 + 5271^2 .

It is not an unprimeable number, because it can be changed into a prime (663277123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18424347 + ... + 18424382.

Almost surely, 2^663277122 is an apocalyptic number.

663277122 is an abundant number, since it is smaller than the sum of its proper divisors (773823348).

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

663277122 is a wasteful number, since it uses less digits than its factorization.

663277122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36848737 (or 36848734 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 663277122 is about 25754.1670802998. The cubic root of 663277122 is about 872.0974284779.

The spelling of 663277122 in words is "six hundred sixty-three million, two hundred seventy-seven thousand, one hundred twenty-two".