668315141 has 8 divisors (see below), whose sum is σ = 720146784. Its totient is φ = 616543920.

The previous prime is 668315113. The next prime is 668315171. The reversal of 668315141 is 141513866.

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 668315141 - 2⁶ = 668315077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668315171) 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, 9350 + ... + 37736.

It is an arithmetic number, because the mean of its divisors is an integer number (90018348).

Almost surely, 2^668315141 is an apocalyptic number.

It is an amenable number.

668315141 is a deficient number, since it is larger than the sum of its proper divisors (51831643).

668315141 is a wasteful number, since it uses less digits than its factorization.

668315141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30211.

The product of its digits is 17280, while the sum is 35.

The square root of 668315141 is about 25851.7918334494. The cubic root of 668315141 is about 874.2999095557.

The spelling of 668315141 in words is "six hundred sixty-eight million, three hundred fifteen thousand, one hundred forty-one".