5945990066 has 8 divisors (see below), whose sum is σ = 8926415004. Its totient is φ = 2970518400.

The previous prime is 5945990059. The next prime is 5945990081. The reversal of 5945990066 is 6600995495.

It can be written as a sum of positive squares in 2 ways, for example, as 4890065041 + 1055925025 = 69929^2 + 32495^2 .

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

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, 1235315 + ... + 1240118.

Almost surely, 2^5945990066 is an apocalyptic number.

5945990066 is a deficient number, since it is larger than the sum of its proper divisors (2980424938).

5945990066 is a wasteful number, since it uses less digits than its factorization.

5945990066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2476636.

The product of its (nonzero) digits is 2624400, while the sum is 53.

The square root of 5945990066 is about 77110.2461803877. The cubic root of 5945990066 is about 1811.6517857922.

The spelling of 5945990066 in words is "five billion, nine hundred forty-five million, nine hundred ninety thousand, sixty-six".