8294451661 has 8 divisors (see below), whose sum is σ = 8465592320. Its totient is φ = 8124964848.

The previous prime is 8294451647. The next prime is 8294451709. The reversal of 8294451661 is 1661544928.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8294451661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8294451631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 403326 + ... + 423391.

It is an arithmetic number, because the mean of its divisors is an integer number (1058199040).

Almost surely, 2^8294451661 is an apocalyptic number.

It is an amenable number.

8294451661 is a deficient number, since it is larger than the sum of its proper divisors (171140659).

8294451661 is a wasteful number, since it uses less digits than its factorization.

8294451661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826923.

The product of its digits is 414720, while the sum is 46.

The square root of 8294451661 is about 91073.8802346754. The cubic root of 8294451661 is about 2024.2425993172.

The spelling of 8294451661 in words is "eight billion, two hundred ninety-four million, four hundred fifty-one thousand, six hundred sixty-one".