5000615661 has 8 divisors (see below), whose sum is σ = 6671770560. Its totient is φ = 3331602272.

The previous prime is 5000615621. The next prime is 5000615693. The reversal of 5000615661 is 1665160005.

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

It is a cyclic number.

It is not a de Polignac number, because 5000615661 - 2⁶ = 5000615597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5000615621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 529920 + ... + 539273.

It is an arithmetic number, because the mean of its divisors is an integer number (833971320).

Almost surely, 2^5000615661 is an apocalyptic number.

It is an amenable number.

5000615661 is a deficient number, since it is larger than the sum of its proper divisors (1671154899).

5000615661 is a wasteful number, since it uses less digits than its factorization.

5000615661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1070755.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 5000615661 is about 70715.0313653328. The cubic root of 5000615661 is about 1710.0461281630.

Adding to 5000615661 its reverse (1665160005), we get a palindrome (6665775666).

The spelling of 5000615661 in words is "five billion, six hundred fifteen thousand, six hundred sixty-one".