1166437356 has 96 divisors (see below), whose sum is σ = 3234470400. Its totient is φ = 326918592.

The previous prime is 1166437351. The next prime is 1166437361. The reversal of 1166437356 is 6537346611.

It is an interprime number because it is at equal distance from previous prime (1166437351) and next prime (1166437361).

It is a super-2 number, since 2×1166437356² = 2721152210944541472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166437351) 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, 215475 + ... + 220821.

It is an arithmetic number, because the mean of its divisors is an integer number (33692400).

Almost surely, 2^1166437356 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1166437356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1617235200).

1166437356 is an abundant number, since it is smaller than the sum of its proper divisors (2068033044).

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

1166437356 is a wasteful number, since it uses less digits than its factorization.

1166437356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5428 (or 5412 counting only the distinct ones).

The product of its digits is 272160, while the sum is 42.

The square root of 1166437356 is about 34153.1456237928. The cubic root of 1166437356 is about 1052.6576232505.

The spelling of 1166437356 in words is "one billion, one hundred sixty-six million, four hundred thirty-seven thousand, three hundred fifty-six".