664250755033 has 8 divisors (see below), whose sum is σ = 682345993608. Its totient is φ = 646163017344.

The previous prime is 664250755031. The next prime is 664250755037. The reversal of 664250755033 is 330557052466.

It can be written as a sum of positive squares in 4 ways, for example, as 527145698304 + 137105056729 = 726048^2 + 370277^2 .

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 664250755033 - 2¹ = 664250755031 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (664250755031) 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, 1695466 + ... + 2050147.

It is an arithmetic number, because the mean of its divisors is an integer number (85293249201).

Almost surely, 2^664250755033 is an apocalyptic number.

It is an amenable number.

664250755033 is a deficient number, since it is larger than the sum of its proper divisors (18095238575).

664250755033 is a wasteful number, since it uses less digits than its factorization.

664250755033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3750443.

The product of its (nonzero) digits is 2268000, while the sum is 46.

The spelling of 664250755033 in words is "six hundred sixty-four billion, two hundred fifty million, seven hundred fifty-five thousand, thirty-three".