668470063 has 8 divisors (see below), whose sum is σ = 671711600. Its totient is φ = 665236800.

The previous prime is 668470051. The next prime is 668470067. The reversal of 668470063 is 360074866.

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 668470063 - 2²¹ = 666372911 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 668469998 and 668470025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668470067) 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, 208156 + ... + 211342.

It is an arithmetic number, because the mean of its divisors is an integer number (83963950).

Almost surely, 2^668470063 is an apocalyptic number.

668470063 is a deficient number, since it is larger than the sum of its proper divisors (3241537).

668470063 is a wasteful number, since it uses less digits than its factorization.

668470063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4137.

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 668470063 is about 25854.7880091870. The cubic root of 668470063 is about 874.3674614323.

The spelling of 668470063 in words is "six hundred sixty-eight million, four hundred seventy thousand, sixty-three".