8252516661 has 8 divisors (see below), whose sum is σ = 11043959424. Its totient is φ = 5481375840.

The previous prime is 8252516647. The next prime is 8252516707. The reversal of 8252516661 is 1666152528.

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

It is not a de Polignac number, because 8252516661 - 2²⁵ = 8218962229 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8252516611) 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, 5074536 + ... + 5076161.

It is an arithmetic number, because the mean of its divisors is an integer number (1380494928).

Almost surely, 2^8252516661 is an apocalyptic number.

It is an amenable number.

8252516661 is a deficient number, since it is larger than the sum of its proper divisors (2791442763).

8252516661 is a wasteful number, since it uses less digits than its factorization.

8252516661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10150971.

The product of its digits is 172800, while the sum is 42.

The square root of 8252516661 is about 90843.3633294144. The cubic root of 8252516661 is about 2020.8254526780.

The spelling of 8252516661 in words is "eight billion, two hundred fifty-two million, five hundred sixteen thousand, six hundred sixty-one".