5001650666 has 8 divisors (see below), whose sum is σ = 7503334020. Its totient is φ = 2500539328.

The previous prime is 5001650659. The next prime is 5001650669. The reversal of 5001650666 is 6660561005.

It can be written as a sum of positive squares in 2 ways, for example, as 3067498225 + 1934152441 = 55385^2 + 43979^2 .

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

It is not an unprimeable number, because it can be changed into a prime (5001650669) 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, 120431 + ... + 156546.

Almost surely, 2^5001650666 is an apocalyptic number.

5001650666 is a deficient number, since it is larger than the sum of its proper divisors (2501683354).

5001650666 is a wasteful number, since it uses less digits than its factorization.

5001650666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286008.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 5001650666 is about 70722.3491267082. The cubic root of 5001650666 is about 1710.1640992501.

The spelling of 5001650666 in words is "five billion, one million, six hundred fifty thousand, six hundred sixty-six".