8821161499 has 2 divisors, whose sum is σ = 8821161500. Its totient is φ = 8821161498.

The previous prime is 8821161493. The next prime is 8821161539. The reversal of 8821161499 is 9941611288.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8821161499 - 2¹⁹ = 8820637211 is a prime.

It is not a weakly prime, because it can be changed into another prime (8821161493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4410580749 + 4410580750.

It is an arithmetic number, because the mean of its divisors is an integer number (4410580750).

Almost surely, 2^8821161499 is an apocalyptic number.

8821161499 is a deficient number, since it is larger than the sum of its proper divisors (1).

8821161499 is an equidigital number, since it uses as much as digits as its factorization.

8821161499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 248832, while the sum is 49.

The square root of 8821161499 is about 93921.0386388481. The cubic root of 8821161499 is about 2066.2137996985.

The spelling of 8821161499 in words is "eight billion, eight hundred twenty-one million, one hundred sixty-one thousand, four hundred ninety-nine".