664113254 has 32 divisors (see below), whose sum is σ = 1153728576. Its totient is φ = 280834560.

The previous prime is 664113221. The next prime is 664113257. The reversal of 664113254 is 452311466.

It is a self number, because there is not a number n which added to its sum of digits gives 664113254.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664113257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 346202 + ... + 348114.

It is an arithmetic number, because the mean of its divisors is an integer number (36054018).

Almost surely, 2^664113254 is an apocalyptic number.

664113254 is a deficient number, since it is larger than the sum of its proper divisors (489615322).

664113254 is a wasteful number, since it uses less digits than its factorization.

664113254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2240.

The product of its digits is 17280, while the sum is 32.

The square root of 664113254 is about 25770.3949135437. The cubic root of 664113254 is about 872.4637320688.

The spelling of 664113254 in words is "six hundred sixty-four million, one hundred thirteen thousand, two hundred fifty-four".