664612245033 has 16 divisors (see below), whose sum is σ = 992835984576. Its totient is φ = 391908939840.

The previous prime is 664612245019. The next prime is 664612245113. The reversal of 664612245033 is 330542216466.

It is a happy number.

It is not a de Polignac number, because 664612245033 - 2⁵ = 664612245001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (664612245733) 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, 272157766 + ... + 272160207.

It is an arithmetic number, because the mean of its divisors is an integer number (62052249036).

Almost surely, 2^664612245033 is an apocalyptic number.

It is an amenable number.

664612245033 is a deficient number, since it is larger than the sum of its proper divisors (328223739543).

664612245033 is a wasteful number, since it uses less digits than its factorization.

664612245033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544318024.

The product of its (nonzero) digits is 622080, while the sum is 42.

The spelling of 664612245033 in words is "six hundred sixty-four billion, six hundred twelve million, two hundred forty-five thousand, thirty-three".