666733363 has 4 divisors (see below), whose sum is σ = 671983360. Its totient is φ = 661483368.

The previous prime is 666733357. The next prime is 666733367. The reversal of 666733363 is 363337666.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-666733363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (666733367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2624808 + ... + 2625061.

It is an arithmetic number, because the mean of its divisors is an integer number (167995840).

Almost surely, 2^666733363 is an apocalyptic number.

666733363 is a deficient number, since it is larger than the sum of its proper divisors (5249997).

666733363 is a wasteful number, since it uses less digits than its factorization.

666733363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5249996.

The product of its digits is 734832, while the sum is 43.

The square root of 666733363 is about 25821.1805113554. The cubic root of 666733363 is about 873.6095960718.

The spelling of 666733363 in words is "six hundred sixty-six million, seven hundred thirty-three thousand, three hundred sixty-three".