668073414734 has 32 divisors (see below), whose sum is σ = 1128567859200. Its totient is φ = 293849992800.

The previous prime is 668073414733. The next prime is 668073414739. The reversal of 668073414734 is 437414370866.

It is a happy number.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 (668073414733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10299287 + ... + 10363949.

It is an arithmetic number, because the mean of its divisors is an integer number (35267745600).

Almost surely, 2^668073414734 is an apocalyptic number.

668073414734 is a deficient number, since it is larger than the sum of its proper divisors (460494444466).

668073414734 is a wasteful number, since it uses less digits than its factorization.

668073414734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79856.

The product of its (nonzero) digits is 8128512, while the sum is 53.

The spelling of 668073414734 in words is "six hundred sixty-eight billion, seventy-three million, four hundred fourteen thousand, seven hundred thirty-four".