32320657140 has 24 divisors (see below), whose sum is σ = 90497840160. Its totient is φ = 8618841888.

The previous prime is 32320657129. The next prime is 32320657157. The reversal of 32320657140 is 4175602323.

It is a super-2 number, since 2×32320657140² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269338750 + ... + 269338869.

It is an arithmetic number, because the mean of its divisors is an integer number (3770743340).

Almost surely, 2^32320657140 is an apocalyptic number.

32320657140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

32320657140 is an abundant number, since it is smaller than the sum of its proper divisors (58177183020).

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

32320657140 is a wasteful number, since it uses less digits than its factorization.

32320657140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538677631 (or 538677629 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 33.

The spelling of 32320657140 in words is "thirty-two billion, three hundred twenty million, six hundred fifty-seven thousand, one hundred forty".