20995367005368 has 256 divisors, whose sum is σ = 70168324992000. Its totient is φ = 5682278656512.

The previous prime is 20995367005357. The next prime is 20995367005439. The reversal of 20995367005368 is 86350076359902.

20995367005368 is a `hidden beast` number, since 2 + 0 + 9 + 95 + 3 + 6 + 7 + 0 + 0 + 536 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 269918130 + ... + 269995902.

It is an arithmetic number, because the mean of its divisors is an integer number (274095019500).

Almost surely, 2^{20995367005368} is an apocalyptic number.

20995367005368 is a gapful number since it is divisible by the number (28) 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 20995367005368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35084162496000).

20995367005368 is an abundant number, since it is smaller than the sum of its proper divisors (49172957986632).

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

20995367005368 is a wasteful number, since it uses less digits than its factorization.

20995367005368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87211 (or 87201 counting only the distinct ones).

The product of its (nonzero) digits is 73483200, while the sum is 63.

The spelling of 20995367005368 in words is "twenty trillion, nine hundred ninety-five billion, three hundred sixty-seven million, five thousand, three hundred sixty-eight".