1171145466 has 80 divisors (see below), whose sum is σ = 2754014208. Its totient is φ = 371498400.

The previous prime is 1171145429. The next prime is 1171145467. The reversal of 1171145466 is 6645411711.

1171145466 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 1171145466.

It is not an unprimeable number, because it can be changed into a prime (1171145467) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 304431 + ... + 308253.

Almost surely, 2^1171145466 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1171145466, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1377007104).

1171145466 is an abundant number, since it is smaller than the sum of its proper divisors (1582868742).

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

1171145466 is a wasteful number, since it uses less digits than its factorization.

1171145466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3929 (or 3920 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 1171145466 is about 34222.0026591081. The cubic root of 1171145466 is about 1054.0720083259.

The spelling of 1171145466 in words is "one billion, one hundred seventy-one million, one hundred forty-five thousand, four hundred sixty-six".