1165564424 has 32 divisors (see below), whose sum is σ = 2307900000. Its totient is φ = 550323072.

The previous prime is 1165564423. The next prime is 1165564457. The reversal of 1165564424 is 4244655611.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (1165564423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35327 + ... + 59825.

It is an arithmetic number, because the mean of its divisors is an integer number (72121875).

Almost surely, 2^1165564424 is an apocalyptic number.

It is an amenable number.

1165564424 is a deficient number, since it is larger than the sum of its proper divisors (1142335576).

1165564424 is a wasteful number, since it uses less digits than its factorization.

1165564424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24837 (or 24833 counting only the distinct ones).

The product of its digits is 115200, while the sum is 38.

The square root of 1165564424 is about 34140.3635598685. The cubic root of 1165564424 is about 1052.3949636681.

The spelling of 1165564424 in words is "one billion, one hundred sixty-five million, five hundred sixty-four thousand, four hundred twenty-four".