666063746 has 8 divisors (see below), whose sum is σ = 1004116800. Its totient is φ = 331358148.

The previous prime is 666063731. The next prime is 666063809. The reversal of 666063746 is 647360666.

666063746 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 666063697 and 666063706.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 836366 + ... + 837161.

It is an arithmetic number, because the mean of its divisors is an integer number (125514600).

Almost surely, 2^666063746 is an apocalyptic number.

666063746 is a deficient number, since it is larger than the sum of its proper divisors (338053054).

666063746 is a wasteful number, since it uses less digits than its factorization.

666063746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673728.

The product of its (nonzero) digits is 653184, while the sum is 44.

The square root of 666063746 is about 25808.2108252393. The cubic root of 666063746 is about 873.3170354488.

The spelling of 666063746 in words is "six hundred sixty-six million, sixty-three thousand, seven hundred forty-six".