1632664243 has 16 divisors (see below), whose sum is σ = 2031840000. Its totient is φ = 1280053152.

The previous prime is 1632664211. The next prime is 1632664247. The reversal of 1632664243 is 3424662361.

It is a happy number.

It is not a de Polignac number, because 1632664243 - 2⁵ = 1632664211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1632664247) 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, 207793 + ... + 215506.

It is an arithmetic number, because the mean of its divisors is an integer number (126990000).

Almost surely, 2^1632664243 is an apocalyptic number.

1632664243 is a deficient number, since it is larger than the sum of its proper divisors (399175757).

1632664243 is a wasteful number, since it uses less digits than its factorization.

1632664243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423354.

The product of its digits is 124416, while the sum is 37.

The square root of 1632664243 is about 40406.2401492641. The cubic root of 1632664243 is about 1177.5127738452.

The spelling of 1632664243 in words is "one billion, six hundred thirty-two million, six hundred sixty-four thousand, two hundred forty-three".