65720588132 has 24 divisors (see below), whose sum is σ = 119377020672. Its totient is φ = 31624581600.

The previous prime is 65720588119. The next prime is 65720588147. The reversal of 65720588132 is 23188502756.

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, 1441658 + ... + 1486545.

It is an arithmetic number, because the mean of its divisors is an integer number (4974042528).

Almost surely, 2^65720588132 is an apocalyptic number.

65720588132 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

65720588132 is a deficient number, since it is larger than the sum of its proper divisors (53656432540).

65720588132 is a wasteful number, since it uses less digits than its factorization.

65720588132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2928419 (or 2928417 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 47.

The spelling of 65720588132 in words is "sixty-five billion, seven hundred twenty million, five hundred eighty-eight thousand, one hundred thirty-two".