8154966499 has 4 divisors (see below), whose sum is σ = 8155279800. Its totient is φ = 8154653200.

The previous prime is 8154966481. The next prime is 8154966509. The reversal of 8154966499 is 9946694518.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8154966499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8154906499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113677 + ... + 170974.

It is an arithmetic number, because the mean of its divisors is an integer number (2038819950).

Almost surely, 2^8154966499 is an apocalyptic number.

8154966499 is a deficient number, since it is larger than the sum of its proper divisors (313301).

8154966499 is a wasteful number, since it uses less digits than its factorization.

8154966499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313300.

The product of its digits is 16796160, while the sum is 61.

The square root of 8154966499 is about 90304.8531309364. The cubic root of 8154966499 is about 2012.8313767510.

The spelling of 8154966499 in words is "eight billion, one hundred fifty-four million, nine hundred sixty-six thousand, four hundred ninety-nine".