1165196664 has 96 divisors (see below), whose sum is σ = 3328416000. Its totient is φ = 381778272.

The previous prime is 1165196663. The next prime is 1165196707. The reversal of 1165196664 is 4666915611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1165196663) 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, 109617 + ... + 119775.

It is an arithmetic number, because the mean of its divisors is an integer number (34671000).

Almost surely, 2^1165196664 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 1165196664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1664208000).

1165196664 is an abundant number, since it is smaller than the sum of its proper divisors (2163219336).

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

1165196664 is a wasteful number, since it uses less digits than its factorization.

1165196664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10239 (or 10223 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 1165196664 is about 34134.9771348979. The cubic root of 1165196664 is about 1052.2842678037.

The spelling of 1165196664 in words is "one billion, one hundred sixty-five million, one hundred ninety-six thousand, six hundred sixty-four".