668340035 has 8 divisors (see below), whose sum is σ = 874917936. Its totient is φ = 486065440.

The previous prime is 668340031. The next prime is 668340059. The reversal of 668340035 is 530043866.

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

It is not a de Polignac number, because 668340035 - 2² = 668340031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 668339977 and 668340004.

It is not an unprimeable number, because it can be changed into a prime (668340031) 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, 6075764 + ... + 6075873.

It is an arithmetic number, because the mean of its divisors is an integer number (109364742).

Almost surely, 2^668340035 is an apocalyptic number.

668340035 is a deficient number, since it is larger than the sum of its proper divisors (206577901).

668340035 is a wasteful number, since it uses less digits than its factorization.

668340035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12151653.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 668340035 is about 25852.2733042957. The cubic root of 668340035 is about 874.3107649892.

The spelling of 668340035 in words is "six hundred sixty-eight million, three hundred forty thousand, thirty-five".