666248283 has 24 divisors (see below), whose sum is σ = 988297856. Its totient is φ = 432345600.

The previous prime is 666248273. The next prime is 666248299. The reversal of 666248283 is 382842666.

It is not a de Polignac number, because 666248283 - 2¹⁴ = 666231899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (666248263) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46998 + ... + 59508.

Almost surely, 2^666248283 is an apocalyptic number.

666248283 is a deficient number, since it is larger than the sum of its proper divisors (322049573).

666248283 is a wasteful number, since it uses less digits than its factorization.

666248283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12675 (or 12672 counting only the distinct ones).

The product of its digits is 663552, while the sum is 45.

The square root of 666248283 is about 25811.7857383018. The cubic root of 666248283 is about 873.3976805950.

It can be divided in two parts, 6662 and 48283, that added together give a palindrome (54945).

The spelling of 666248283 in words is "six hundred sixty-six million, two hundred forty-eight thousand, two hundred eighty-three".