1163275506 has 56 divisors (see below), whose sum is σ = 2660711760. Its totient is φ = 381158136.

The previous prime is 1163275489. The next prime is 1163275583. The reversal of 1163275506 is 6055723611.

1163275506 is a `hidden beast` number, since 11 + 632 + 7 + 5 + 5 + 0 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 79261 + ... + 92783.

It is an arithmetic number, because the mean of its divisors is an integer number (47512710).

Almost surely, 2^1163275506 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1163275506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1330355880).

1163275506 is an abundant number, since it is smaller than the sum of its proper divisors (1497436254).

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

1163275506 is an equidigital number, since it uses as much as digits as its factorization.

1163275506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13602 (or 13587 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 1163275506 is about 34106.8249181890. The cubic root of 1163275506 is about 1051.7056197283.

The spelling of 1163275506 in words is "one billion, one hundred sixty-three million, two hundred seventy-five thousand, five hundred six".