6660994083 has 4 divisors (see below), whose sum is σ = 8881325448. Its totient is φ = 4440662720.

The previous prime is 6660994063. The next prime is 6660994091. The reversal of 6660994083 is 3804990666.

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

It is a cyclic number.

It is not a de Polignac number, because 6660994083 - 2⁸ = 6660993827 is a prime.

It is a super-2 number, since 2×6660994083² = 88737684347522021778, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6660994013) 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, 1110165678 + ... + 1110165683.

It is an arithmetic number, because the mean of its divisors is an integer number (2220331362).

Almost surely, 2^6660994083 is an apocalyptic number.

6660994083 is a deficient number, since it is larger than the sum of its proper divisors (2220331365).

6660994083 is a wasteful number, since it uses less digits than its factorization.

6660994083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2220331364.

The product of its (nonzero) digits is 1679616, while the sum is 51.

The square root of 6660994083 is about 81614.9133614684. The cubic root of 6660994083 is about 1881.5380957255.

The spelling of 6660994083 in words is "six billion, six hundred sixty million, nine hundred ninety-four thousand, eighty-three".