5001666641 has 4 divisors (see below), whose sum is σ = 5219130432. Its totient is φ = 4784202852.

The previous prime is 5001666601. The next prime is 5001666643. The reversal of 5001666641 is 1466661005.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5001666641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5001666643) 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, 108731861 + ... + 108731906.

It is an arithmetic number, because the mean of its divisors is an integer number (1304782608).

Almost surely, 2^5001666641 is an apocalyptic number.

It is an amenable number.

5001666641 is a deficient number, since it is larger than the sum of its proper divisors (217463791).

5001666641 is a wasteful number, since it uses less digits than its factorization.

5001666641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217463790.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 5001666641 is about 70722.4620682849. The cubic root of 5001666641 is about 1710.1659199719.

The spelling of 5001666641 in words is "five billion, one million, six hundred sixty-six thousand, six hundred forty-one".