1119664518 has 32 divisors (see below), whose sum is σ = 2670506496. Its totient is φ = 305995008.

The previous prime is 1119664517. The next prime is 1119664621. The reversal of 1119664518 is 8154669111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 1119664518.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1119664517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 578571 + ... + 580502.

It is an arithmetic number, because the mean of its divisors is an integer number (83453328).

Almost surely, 2^1119664518 is an apocalyptic number.

1119664518 is an abundant number, since it is smaller than the sum of its proper divisors (1550841978).

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

1119664518 is a wasteful number, since it uses less digits than its factorization.

1119664518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1159108.

The product of its digits is 51840, while the sum is 42.

The square root of 1119664518 is about 33461.3884649158. The cubic root of 1119664518 is about 1038.3951202354.

The spelling of 1119664518 in words is "one billion, one hundred nineteen million, six hundred sixty-four thousand, five hundred eighteen".