1165531662 has 48 divisors (see below), whose sum is σ = 2730791232. Its totient is φ = 357872640.

The previous prime is 1165531613. The next prime is 1165531667. The reversal of 1165531662 is 2661355611.

1165531662 is a `hidden beast` number, since 1 + 1 + 65 + 531 + 6 + 62 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1165531667) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26139 + ... + 54902.

It is an arithmetic number, because the mean of its divisors is an integer number (56891484).

Almost surely, 2^1165531662 is an apocalyptic number.

1165531662 is an abundant number, since it is smaller than the sum of its proper divisors (1565259570).

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

1165531662 is a wasteful number, since it uses less digits than its factorization.

1165531662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81113 (or 81110 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 1165531662 is about 34139.8837432115. The cubic root of 1165531662 is about 1052.3851032417.

The spelling of 1165531662 in words is "one billion, one hundred sixty-five million, five hundred thirty-one thousand, six hundred sixty-two".