65072507601720 has 32 divisors (see below), whose sum is σ = 195217522805520. Its totient is φ = 17352668693760.

The previous prime is 65072507601623. The next prime is 65072507601737. The reversal of 65072507601720 is 2710670527056.

It is a super-2 number, since 2×65072507601720² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 65072507601720.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 271135448221 + ... + 271135448460.

Almost surely, 2^{65072507601720} is an apocalyptic number.

65072507601720 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

65072507601720 is an abundant number, since it is smaller than the sum of its proper divisors (130145015203800).

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

65072507601720 is a wasteful number, since it uses less digits than its factorization.

65072507601720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542270896695 (or 542270896691 counting only the distinct ones).

The product of its (nonzero) digits is 1234800, while the sum is 48.

The spelling of 65072507601720 in words is "sixty-five trillion, seventy-two billion, five hundred seven million, six hundred one thousand, seven hundred twenty".