65972346698720 has 96 divisors (see below), whose sum is σ = 194318548494336. Its totient is φ = 20562809356800.

The previous prime is 65972346698719. The next prime is 65972346698729. The reversal of 65972346698720 is 2789664327956.

It is a happy number.

It is a super-2 number, since 2×65972346698720² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65972346698729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2677436816 + ... + 2677461455.

It is an arithmetic number, because the mean of its divisors is an integer number (2024151546816).

Almost surely, 2^{65972346698720} is an apocalyptic number.

It is an amenable number.

65972346698720 is an abundant number, since it is smaller than the sum of its proper divisors (128346201795616).

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

65972346698720 is a wasteful number, since it uses less digits than its factorization.

65972346698720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5354898304 (or 5354898296 counting only the distinct ones).

The product of its (nonzero) digits is 1646023680, while the sum is 74.

The spelling of 65972346698720 in words is "sixty-five trillion, nine hundred seventy-two billion, three hundred forty-six million, six hundred ninety-eight thousand, seven hundred twenty".