1666063246 has 8 divisors (see below), whose sum is σ = 2500602624. Its totient is φ = 832529040.

The previous prime is 1666063211. The next prime is 1666063277. The reversal of 1666063246 is 6423606661.

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

It is a super-3 number, since 3×1666063246³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1666063199 and 1666063208.

It is a congruent number.

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, 247135 + ... + 253786.

It is an arithmetic number, because the mean of its divisors is an integer number (312575328).

Almost surely, 2^1666063246 is an apocalyptic number.

1666063246 is a deficient number, since it is larger than the sum of its proper divisors (834539378).

1666063246 is a wasteful number, since it uses less digits than its factorization.

1666063246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502586.

The product of its (nonzero) digits is 186624, while the sum is 40.

The square root of 1666063246 is about 40817.4380136725. The cubic root of 1666063246 is about 1185.4879973630.

The spelling of 1666063246 in words is "one billion, six hundred sixty-six million, sixty-three thousand, two hundred forty-six".