668153414 has 8 divisors (see below), whose sum is σ = 1061184888. Its totient is φ = 314425120.

The previous prime is 668153383. The next prime is 668153471. The reversal of 668153414 is 414351866.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9825752 + ... + 9825819.

It is an arithmetic number, because the mean of its divisors is an integer number (132648111).

Almost surely, 2^668153414 is an apocalyptic number.

668153414 is a deficient number, since it is larger than the sum of its proper divisors (393031474).

668153414 is a wasteful number, since it uses less digits than its factorization.

668153414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19651590.

The product of its digits is 69120, while the sum is 38.

The square root of 668153414 is about 25848.6636791924. The cubic root of 668153414 is about 874.2293793023.

The spelling of 668153414 in words is "six hundred sixty-eight million, one hundred fifty-three thousand, four hundred fourteen".