1166933898 has 64 divisors (see below), whose sum is σ = 2868203520. Its totient is φ = 349344576.

The previous prime is 1166933897. The next prime is 1166933903. The reversal of 1166933898 is 8983396611.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (1166933891) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3511 + ... + 48437.

It is an arithmetic number, because the mean of its divisors is an integer number (44815680).

Almost surely, 2^1166933898 is an apocalyptic number.

1166933898 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1166933898, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1434101760).

1166933898 is an abundant number, since it is smaller than the sum of its proper divisors (1701269622).

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

1166933898 is a wasteful number, since it uses less digits than its factorization.

1166933898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44988 (or 44982 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 54.

The square root of 1166933898 is about 34160.4141953812. The cubic root of 1166933898 is about 1052.8069710540.

The spelling of 1166933898 in words is "one billion, one hundred sixty-six million, nine hundred thirty-three thousand, eight hundred ninety-eight".