1163520198 has 12 divisors (see below), whose sum is σ = 2520960468. Its totient is φ = 387840060.

The previous prime is 1163520151. The next prime is 1163520199. The reversal of 1163520198 is 8910253611.

1163520198 is a `hidden beast` number, since 1 + 1 + 635 + 2 + 0 + 19 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1163520199) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32319988 + ... + 32320023.

It is an arithmetic number, because the mean of its divisors is an integer number (210080039).

Almost surely, 2^1163520198 is an apocalyptic number.

1163520198 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1163520198 is an abundant number, since it is smaller than the sum of its proper divisors (1357440270).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1163520198 is a wasteful number, since it uses less digits than its factorization.

1163520198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64640019 (or 64640016 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 1163520198 is about 34110.4118708643. The cubic root of 1163520198 is about 1051.7793557459.

The spelling of 1163520198 in words is "one billion, one hundred sixty-three million, five hundred twenty thousand, one hundred ninety-eight".