663477164 has 24 divisors (see below), whose sum is σ = 1327726848. Its totient is φ = 284181840.

The previous prime is 663477091. The next prime is 663477197. The reversal of 663477164 is 461774366.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50417 + ... + 62199.

It is an arithmetic number, because the mean of its divisors is an integer number (55321952).

Almost surely, 2^663477164 is an apocalyptic number.

It is an amenable number.

663477164 is an abundant number, since it is smaller than the sum of its proper divisors (664249684).

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

663477164 is a wasteful number, since it uses less digits than its factorization.

663477164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13805 (or 13803 counting only the distinct ones).

The product of its digits is 508032, while the sum is 44.

The square root of 663477164 is about 25758.0504697075. The cubic root of 663477164 is about 872.1850934837.

The spelling of 663477164 in words is "six hundred sixty-three million, four hundred seventy-seven thousand, one hundred sixty-four".