65654969396112 has 120 divisors (see below), whose sum is σ = 186070145998464. Its totient is φ = 21608100893952.

The previous prime is 65654969396111. The next prime is 65654969396129. The reversal of 65654969396112 is 21169396945656.

65654969396112 is a `hidden beast` number, since 6 + 5 + 6 + 549 + 6 + 9 + 3 + 9 + 61 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (65654969396111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17887593 + ... + 21243255.

Almost surely, 2^{65654969396112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65654969396112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93035072999232).

65654969396112 is an abundant number, since it is smaller than the sum of its proper divisors (120415176602352).

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

65654969396112 is a wasteful number, since it uses less digits than its factorization.

65654969396112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3357397 (or 3357388 counting only the distinct ones).

The product of its digits is 566870400, while the sum is 72.

The spelling of 65654969396112 in words is "sixty-five trillion, six hundred fifty-four billion, nine hundred sixty-nine million, three hundred ninety-six thousand, one hundred twelve".