20893095136368 has 360 divisors, whose sum is σ = 75040553847168. Its totient is φ = 5510265636096.

The previous prime is 20893095136363. The next prime is 20893095136409. The reversal of 20893095136368 is 86363159039802.

20893095136368 is a `hidden beast` number, since 2 + 0 + 89 + 3 + 0 + 9 + 513 + 6 + 36 + 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 not an unprimeable number, because it can be changed into a prime (20893095136363) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2328271 + ... + 6870737.

Almost surely, 2^{20893095136368} is an apocalyptic number.

20893095136368 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 20893095136368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37520276923584).

20893095136368 is an abundant number, since it is smaller than the sum of its proper divisors (54147458710800).

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

20893095136368 is a wasteful number, since it uses less digits than its factorization.

20893095136368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4542523 (or 4542492 counting only the distinct ones).

The product of its (nonzero) digits is 50388480, while the sum is 63.

The spelling of 20893095136368 in words is "twenty trillion, eight hundred ninety-three billion, ninety-five million, one hundred thirty-six thousand, three hundred sixty-eight".