1162640466 has 80 divisors (see below), whose sum is σ = 2817115224. Its totient is φ = 356265216.

The previous prime is 1162640459. The next prime is 1162640471. The reversal of 1162640466 is 6640462611.

1162640466 is a `hidden beast` number, since 1 + 1 + 6 + 2 + 640 + 4 + 6 + 6 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 741200625 + 421439841 = 27225^2 + 20529^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1162640466.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 582366 + ... + 584358.

Almost surely, 2^1162640466 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1162640466, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1408557612).

1162640466 is an abundant number, since it is smaller than the sum of its proper divisors (1654474758).

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

1162640466 is a wasteful number, since it uses less digits than its factorization.

1162640466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2297 (or 2288 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 1162640466 is about 34097.5140736095. The cubic root of 1162640466 is about 1051.5142071458.

The spelling of 1162640466 in words is "one billion, one hundred sixty-two million, six hundred forty thousand, four hundred sixty-six".