32159138566 has 4 divisors (see below), whose sum is σ = 48238707852. Its totient is φ = 16079569282.

The previous prime is 32159138563. The next prime is 32159138597. The reversal of 32159138566 is 66583195123.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32159138563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8039784640 + ... + 8039784643.

It is an arithmetic number, because the mean of its divisors is an integer number (12059676963).

Almost surely, 2^32159138566 is an apocalyptic number.

32159138566 is a deficient number, since it is larger than the sum of its proper divisors (16079569286).

32159138566 is a wasteful number, since it uses less digits than its factorization.

32159138566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16079569285.

The product of its digits is 1166400, while the sum is 49.

The spelling of 32159138566 in words is "thirty-two billion, one hundred fifty-nine million, one hundred thirty-eight thousand, five hundred sixty-six".