663122845 has 32 divisors (see below), whose sum is σ = 1026328320. Its totient is φ = 399114240.

The previous prime is 663122839. The next prime is 663122849. The reversal of 663122845 is 548221366.

It is not a de Polignac number, because 663122845 - 2²¹ = 661025693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663122849) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 18532 + ... + 40861.

It is an arithmetic number, because the mean of its divisors is an integer number (32072760).

Almost surely, 2^663122845 is an apocalyptic number.

It is an amenable number.

663122845 is a deficient number, since it is larger than the sum of its proper divisors (363205475).

663122845 is a wasteful number, since it uses less digits than its factorization.

663122845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59445.

The product of its digits is 69120, while the sum is 37.

The square root of 663122845 is about 25751.1717209140. The cubic root of 663122845 is about 872.0298071657.

The spelling of 663122845 in words is "six hundred sixty-three million, one hundred twenty-two thousand, eight hundred forty-five".