664466003522246 has 8 divisors (see below), whose sum is σ = 996702169378440. Its totient is φ = 332231947062768.

The previous prime is 664466003522201. The next prime is 664466003522249. The reversal of 664466003522246 is 642225300664466.

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

It is a junction number, because it is equal to n+sod(n) for n = 664466003522191 and 664466003522200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664466003522249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 526561436 + ... + 527821823.

It is an arithmetic number, because the mean of its divisors is an integer number (124587771172305).

Almost surely, 2^{664466003522246} is an apocalyptic number.

664466003522246 is a deficient number, since it is larger than the sum of its proper divisors (332236165856194).

664466003522246 is a wasteful number, since it uses less digits than its factorization.

664466003522246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1054698358.

The product of its (nonzero) digits is 59719680, while the sum is 56.

The spelling of 664466003522246 in words is "six hundred sixty-four trillion, four hundred sixty-six billion, three million, five hundred twenty-two thousand, two hundred forty-six".