63221164 has 24 divisors (see below), whose sum is σ = 118253520. Its totient is φ = 29469696.

The previous prime is 63221161. The next prime is 63221173. The reversal of 63221164 is 46112236.

It is not an unprimeable number, because it can be changed into a prime (63221161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2932 + ... + 11620.

It is an arithmetic number, because the mean of its divisors is an integer number (4927230).

Almost surely, 2^63221164 is an apocalyptic number.

It is an amenable number.

63221164 is a deficient number, since it is larger than the sum of its proper divisors (55032356).

63221164 is a wasteful number, since it uses less digits than its factorization.

63221164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8817 (or 8815 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 63221164 is about 7951.1737498309. The cubic root of 63221164 is about 398.3707982634.

The spelling of 63221164 in words is "sixty-three million, two hundred twenty-one thousand, one hundred sixty-four".