668034837254 has 4 divisors (see below), whose sum is σ = 1002052255884. Its totient is φ = 334017418626.

The previous prime is 668034837221. The next prime is 668034837269. The reversal of 668034837254 is 452738430866.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 668034837254.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167008709312 + ... + 167008709315.

It is an arithmetic number, because the mean of its divisors is an integer number (250513063971).

Almost surely, 2^668034837254 is an apocalyptic number.

668034837254 is a deficient number, since it is larger than the sum of its proper divisors (334017418630).

668034837254 is a wasteful number, since it uses less digits than its factorization.

668034837254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334017418629.

The product of its (nonzero) digits is 23224320, while the sum is 56.

The spelling of 668034837254 in words is "six hundred sixty-eight billion, thirty-four million, eight hundred thirty-seven thousand, two hundred fifty-four".