5001336661 has 16 divisors (see below), whose sum is σ = 5220552960. Its totient is φ = 4787527680.

The previous prime is 5001336619. The next prime is 5001336673. The reversal of 5001336661 is 1666331005.

It is a cyclic number.

It is not a de Polignac number, because 5001336661 - 2¹⁹ = 5000812373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5001336601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 523221 + ... + 532693.

It is an arithmetic number, because the mean of its divisors is an integer number (326284560).

Almost surely, 2^5001336661 is an apocalyptic number.

It is an amenable number.

5001336661 is a deficient number, since it is larger than the sum of its proper divisors (219216299).

5001336661 is a wasteful number, since it uses less digits than its factorization.

5001336661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9756.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 5001336661 is about 70720.1291076310. The cubic root of 5001336661 is about 1710.1283103109.

Adding to 5001336661 its reverse (1666331005), we get a palindrome (6667667666).

The spelling of 5001336661 in words is "five billion, one million, three hundred thirty-six thousand, six hundred sixty-one".