666734141474 has 16 divisors (see below), whose sum is σ = 1009550671800. Its totient is φ = 330218913024.

The previous prime is 666734141401. The next prime is 666734141501. The reversal of 666734141474 is 474141437666.

It can be written as a sum of positive squares in 4 ways, for example, as 601252914025 + 65481227449 = 775405^2 + 255893^2 .

It is a super-3 number, since 3×666734141474³ (a number of 36 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 392312 + ... + 1219580.

Almost surely, 2^666734141474 is an apocalyptic number.

666734141474 is a deficient number, since it is larger than the sum of its proper divisors (342816530326).

666734141474 is a wasteful number, since it uses less digits than its factorization.

666734141474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831077.

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

The spelling of 666734141474 in words is "six hundred sixty-six billion, seven hundred thirty-four million, one hundred forty-one thousand, four hundred seventy-four".