163486864 has 20 divisors (see below), whose sum is σ = 316991740. Its totient is φ = 81682560.

The previous prime is 163486861. The next prime is 163486877. The reversal of 163486864 is 468684361.

163486864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 4928400 + 158558464 = 2220^2 + 12592^2 .

It is not an unprimeable number, because it can be changed into a prime (163486861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24922 + ... + 30790.

It is an arithmetic number, because the mean of its divisors is an integer number (15849587).

Almost surely, 2^163486864 is an apocalyptic number.

It is an amenable number.

163486864 is a deficient number, since it is larger than the sum of its proper divisors (153504876).

163486864 is a wasteful number, since it uses less digits than its factorization.

163486864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7618 (or 7612 counting only the distinct ones).

The product of its digits is 663552, while the sum is 46.

The square root of 163486864 is about 12786.1981839795. The cubic root of 163486864 is about 546.7988859904.

The spelling of 163486864 in words is "one hundred sixty-three million, four hundred eighty-six thousand, eight hundred sixty-four".