664574103 has 24 divisors (see below), whose sum is σ = 970176480. Its totient is φ = 438350400.

The previous prime is 664574101. The next prime is 664574107. The reversal of 664574103 is 301475466.

It is a happy number.

664574103 is a `hidden beast` number, since 6 + 645 + 7 + 4 + 1 + 0 + 3 = 666.

It is not a de Polignac number, because 664574103 - 2¹ = 664574101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664574101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 397353 + ... + 399021.

It is an arithmetic number, because the mean of its divisors is an integer number (40424020).

Almost surely, 2^664574103 is an apocalyptic number.

664574103 is a deficient number, since it is larger than the sum of its proper divisors (305602377).

664574103 is a wasteful number, since it uses less digits than its factorization.

664574103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2119 (or 2116 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 664574103 is about 25779.3348052272. The cubic root of 664574103 is about 872.6654953815.

The spelling of 664574103 in words is "six hundred sixty-four million, five hundred seventy-four thousand, one hundred three".