21927361158144 has 528 divisors, whose sum is σ = 70400188185600. Its totient is φ = 6530307194880.

The previous prime is 21927361158121. The next prime is 21927361158151. The reversal of 21927361158144 is 44185116372912.

21927361158144 is a `hidden beast` number, since 2 + 1 + 9 + 2 + 7 + 3 + 6 + 11 + 581 + 44 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 623822682 + ... + 623857830.

Almost surely, 2^{21927361158144} is an apocalyptic number.

21927361158144 is a gapful number since it is divisible by the number (24) 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 21927361158144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35200094092800).

21927361158144 is an abundant number, since it is smaller than the sum of its proper divisors (48472827027456).

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

21927361158144 is a wasteful number, since it uses less digits than its factorization.

21927361158144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35356 (or 35335 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The spelling of 21927361158144 in words is "twenty-one trillion, nine hundred twenty-seven billion, three hundred sixty-one million, one hundred fifty-eight thousand, one hundred forty-four".