664612246366 has 16 divisors (see below), whose sum is σ = 1050831250560. Its totient is φ = 314383279320.

The previous prime is 664612246339. The next prime is 664612246393. The reversal of 664612246366 is 663642216466.

It is an interprime number because it is at equal distance from previous prime (664612246339) and next prime (664612246393).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12001120 + ... + 12056371.

It is an arithmetic number, because the mean of its divisors is an integer number (65676953160).

Almost surely, 2^664612246366 is an apocalyptic number.

664612246366 is a deficient number, since it is larger than the sum of its proper divisors (386219004194).

664612246366 is a wasteful number, since it uses less digits than its factorization.

664612246366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24058239.

The product of its digits is 8957952, while the sum is 52.

The spelling of 664612246366 in words is "six hundred sixty-four billion, six hundred twelve million, two hundred forty-six thousand, three hundred sixty-six".