32066640520 has 32 divisors (see below), whose sum is σ = 74099943000. Its totient is φ = 12479989248.

The previous prime is 32066640517. The next prime is 32066640547. The reversal of 32066640520 is 2504666023.

It can be written as a sum of positive squares in 4 ways, for example, as 31813003044 + 253637476 = 178362^2 + 15926^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10831845 + ... + 10834804.

Almost surely, 2^32066640520 is an apocalyptic number.

It is an amenable number.

32066640520 is an abundant number, since it is smaller than the sum of its proper divisors (42033302480).

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

32066640520 is a wasteful number, since it uses less digits than its factorization.

32066640520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21666697 (or 21666693 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 34.

The spelling of 32066640520 in words is "thirty-two billion, sixty-six million, six hundred forty thousand, five hundred twenty".