5015606661 has 12 divisors (see below), whose sum is σ = 7802054988. Its totient is φ = 3086527104.

The previous prime is 5015606647. The next prime is 5015606677. The reversal of 5015606661 is 1666065105.

It can be written as a sum of positive squares in 2 ways, for example, as 670292100 + 4345314561 = 25890^2 + 65919^2 .

It is not a de Polignac number, because 5015606661 - 2¹¹ = 5015604613 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5015606641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21434100 + ... + 21434333.

It is an arithmetic number, because the mean of its divisors is an integer number (650171249).

Almost surely, 2^5015606661 is an apocalyptic number.

It is an amenable number.

5015606661 is a deficient number, since it is larger than the sum of its proper divisors (2786448327).

5015606661 is a wasteful number, since it uses less digits than its factorization.

5015606661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42868452 (or 42868449 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 5015606661 is about 70820.9478967911. The cubic root of 5015606661 is about 1711.7532331181.

The spelling of 5015606661 in words is "five billion, fifteen million, six hundred six thousand, six hundred sixty-one".