664602051 has 8 divisors (see below), whose sum is σ = 891442944. Its totient is φ = 440414600.

The previous prime is 664602031. The next prime is 664602073. The reversal of 664602051 is 150206466.

664602051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 664602051 - 2¹⁰ = 664601027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (664602031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 662775 + ... + 663776.

It is an arithmetic number, because the mean of its divisors is an integer number (111430368).

Almost surely, 2^664602051 is an apocalyptic number.

664602051 is a deficient number, since it is larger than the sum of its proper divisors (226840893).

664602051 is a wasteful number, since it uses less digits than its factorization.

664602051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1326721.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 664602051 is about 25779.8768616144. The cubic root of 664602051 is about 872.6777282352.

The spelling of 664602051 in words is "six hundred sixty-four million, six hundred two thousand, fifty-one".