1163210550 has 72 divisors (see below), whose sum is σ = 3064550136. Its totient is φ = 291932160.

The previous prime is 1163210539. The next prime is 1163210599. The reversal of 1163210550 is 550123611.

It is a self number, because there is not a number n which added to its sum of digits gives 1163210550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 29934 + ... + 56766.

Almost surely, 2^1163210550 is an apocalyptic number.

1163210550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1163210550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1532275068).

1163210550 is an abundant number, since it is smaller than the sum of its proper divisors (1901339586).

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

1163210550 is a wasteful number, since it uses less digits than its factorization.

1163210550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26882 (or 26860 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 1163210550 is about 34105.8726614640. The cubic root of 1163210550 is about 1051.6860440097.

The spelling of 1163210550 in words is "one billion, one hundred sixty-three million, two hundred ten thousand, five hundred fifty".