668152067 has 8 divisors (see below), whose sum is σ = 736111152. Its totient is φ = 601396000.

The previous prime is 668152061. The next prime is 668152087. The reversal of 668152067 is 760251866.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-668152067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (668152061) 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, 299588 + ... + 301809.

It is an arithmetic number, because the mean of its divisors is an integer number (92013894).

Almost surely, 2^668152067 is an apocalyptic number.

668152067 is a deficient number, since it is larger than the sum of its proper divisors (67959085).

668152067 is a wasteful number, since it uses less digits than its factorization.

668152067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601509.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 668152067 is about 25848.6376236737. The cubic root of 668152067 is about 874.2287918186.

The spelling of 668152067 in words is "six hundred sixty-eight million, one hundred fifty-two thousand, sixty-seven".