254667664 has 20 divisors (see below), whose sum is σ = 493833100. Its totient is φ = 127226880.

The previous prime is 254667653. The next prime is 254667683. The reversal of 254667664 is 466766452.

254667664 is digitally balanced in base 3, 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 209670400 + 44997264 = 14480^2 + 6708^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15112 + ... + 27160.

It is an arithmetic number, because the mean of its divisors is an integer number (24691655).

Almost surely, 2^254667664 is an apocalyptic number.

It is an amenable number.

254667664 is a deficient number, since it is larger than the sum of its proper divisors (239165436).

254667664 is a wasteful number, since it uses less digits than its factorization.

254667664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13378 (or 13372 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 46.

The square root of 254667664 is about 15958.3101862321. The cubic root of 254667664 is about 633.8569670072.

The spelling of 254667664 in words is "two hundred fifty-four million, six hundred sixty-seven thousand, six hundred sixty-four".