1166171512 has 48 divisors (see below), whose sum is σ = 2517571800. Its totient is φ = 502165440.

The previous prime is 1166171509. The next prime is 1166171533. The reversal of 1166171512 is 2151716611.

It is a super-2 number, since 2×1166171512² = 2719911990800732288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13414 + ... + 50122.

Almost surely, 2^1166171512 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 1166171512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1258785900).

1166171512 is an abundant number, since it is smaller than the sum of its proper divisors (1351400288).

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

1166171512 is a wasteful number, since it uses less digits than its factorization.

1166171512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36764 (or 36741 counting only the distinct ones).

The product of its digits is 2520, while the sum is 31.

The square root of 1166171512 is about 34149.2534618255. The cubic root of 1166171512 is about 1052.5776463950.

The spelling of 1166171512 in words is "one billion, one hundred sixty-six million, one hundred seventy-one thousand, five hundred twelve".