1153664446 has 8 divisors (see below), whose sum is σ = 1887814584. Its totient is φ = 524392920.

The previous prime is 1153664443. The next prime is 1153664459. The reversal of 1153664446 is 6444663511.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1153664399 and 1153664408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1153664443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26219625 + ... + 26219668.

It is an arithmetic number, because the mean of its divisors is an integer number (235976823).

Almost surely, 2^1153664446 is an apocalyptic number.

1153664446 is a deficient number, since it is larger than the sum of its proper divisors (734150138).

1153664446 is a wasteful number, since it uses less digits than its factorization.

1153664446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52439306.

The product of its digits is 207360, while the sum is 40.

The square root of 1153664446 is about 33965.6362519532. The cubic root of 1153664446 is about 1048.8011853908.

The spelling of 1153664446 in words is "one billion, one hundred fifty-three million, six hundred sixty-four thousand, four hundred forty-six".