7431343666 has 16 divisors (see below), whose sum is σ = 11333078208. Its totient is φ = 3653686800.

The previous prime is 7431343657. The next prime is 7431343681. The reversal of 7431343666 is 6663431347.

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, 552481 + ... + 565771.

It is an arithmetic number, because the mean of its divisors is an integer number (708317388).

Almost surely, 2^7431343666 is an apocalyptic number.

7431343666 is a deficient number, since it is larger than the sum of its proper divisors (3901734542).

7431343666 is a wasteful number, since it uses less digits than its factorization.

7431343666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17937.

The product of its digits is 653184, while the sum is 43.

The square root of 7431343666 is about 86205.2415227752. The cubic root of 7431343666 is about 1951.4426025466.

The spelling of 7431343666 in words is "seven billion, four hundred thirty-one million, three hundred forty-three thousand, six hundred sixty-six".