1163322999 has 8 divisors (see below), whose sum is σ = 1723441520. Its totient is φ = 775548648.

The previous prime is 1163322997. The next prime is 1163323069. The reversal of 1163322999 is 9992233611.

1163322999 is a `hidden beast` number, since 1 + 1 + 633 + 2 + 2 + 9 + 9 + 9 = 666.

It is not a de Polignac number, because 1163322999 - 2¹ = 1163322997 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 (1163322997) 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, 21542992 + ... + 21543045.

It is an arithmetic number, because the mean of its divisors is an integer number (215430190).

Almost surely, 2^1163322999 is an apocalyptic number.

1163322999 is a deficient number, since it is larger than the sum of its proper divisors (560118521).

1163322999 is an equidigital number, since it uses as much as digits as its factorization.

1163322999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43086046 (or 43086040 counting only the distinct ones).

The product of its digits is 157464, while the sum is 45.

The square root of 1163322999 is about 34107.5211500338. The cubic root of 1163322999 is about 1051.7199321805.

The spelling of 1163322999 in words is "one billion, one hundred sixty-three million, three hundred twenty-two thousand, nine hundred ninety-nine".