664041053 has 16 divisors (see below), whose sum is σ = 721996800. Its totient is φ = 610711920.

The previous prime is 664041031. The next prime is 664041107. The reversal of 664041053 is 350140466.

It is a happy number.

It is not a de Polignac number, because 664041053 - 2⁶ = 664040989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664041023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1052048 + ... + 1052678.

It is an arithmetic number, because the mean of its divisors is an integer number (45124800).

Almost surely, 2^664041053 is an apocalyptic number.

It is an amenable number.

664041053 is a deficient number, since it is larger than the sum of its proper divisors (57955747).

664041053 is an equidigital number, since it uses as much as digits as its factorization.

664041053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149 (or 1123 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 664041053 is about 25768.9940238264. The cubic root of 664041053 is about 872.4321134473.

The spelling of 664041053 in words is "six hundred sixty-four million, forty-one thousand, fifty-three".