19955769713712 has 240 divisors, whose sum is σ = 66531752052480. Its totient is φ = 5463015667200.

The previous prime is 19955769713681. The next prime is 19955769713801. The reversal of 19955769713712 is 21731796755991.

19955769713712 is a `hidden beast` number, since 1 + 9 + 9 + 5 + 576 + 9 + 7 + 1 + 37 + 12 = 666.

19955769713712 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1223787 + ... + 6434997.

It is an arithmetic number, because the mean of its divisors is an integer number (277215633552).

Almost surely, 2^{19955769713712} is an apocalyptic number.

19955769713712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19955769713712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33265876026240).

19955769713712 is an abundant number, since it is smaller than the sum of its proper divisors (46575982338768).

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

19955769713712 is a wasteful number, since it uses less digits than its factorization.

19955769713712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5211392 (or 5211383 counting only the distinct ones).

The product of its digits is 225042300, while the sum is 72.

The spelling of 19955769713712 in words is "nineteen trillion, nine hundred fifty-five billion, seven hundred sixty-nine million, seven hundred thirteen thousand, seven hundred twelve".