664863027334 has 8 divisors (see below), whose sum is σ = 1087957681128. Its totient is φ = 302210466960.

The previous prime is 664863027317. The next prime is 664863027377. The reversal of 664863027334 is 433720368466.

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

It is a super-2 number, since 2×664863027334² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15110523327 + ... + 15110523370.

It is an arithmetic number, because the mean of its divisors is an integer number (135994710141).

Almost surely, 2^664863027334 is an apocalyptic number.

664863027334 is a deficient number, since it is larger than the sum of its proper divisors (423094653794).

664863027334 is a wasteful number, since it uses less digits than its factorization.

664863027334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30221046710.

The product of its (nonzero) digits is 10450944, while the sum is 52.

The spelling of 664863027334 in words is "six hundred sixty-four billion, eight hundred sixty-three million, twenty-seven thousand, three hundred thirty-four".