22491439040196 has 675 divisors, whose sum is σ = 72649340120511. Its totient is φ = 6066396268128.

The previous prime is 22491439040173. The next prime is 22491439040219. The reversal of 22491439040196 is 69104093419422.

The square root of 22491439040196 is 4742514.

It is a perfect power (a square), and thus also a powerful number.

22491439040196 is a `hidden beast` number, since 2 + 2 + 4 + 9 + 143 + 9 + 0 + 401 + 96 = 666.

It is an interprime number because it is at equal distance from previous prime (22491439040173) and next prime (22491439040219).

It is a Harshad number since it is a multiple of its sum of digits (54).

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 224 ways as a sum of consecutive naturals, for example, 79475049471 + ... + 79475049753.

Almost surely, 2^{22491439040196} is an apocalyptic number.

22491439040196 is the 4742514-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22491439040196

22491439040196 is an abundant number, since it is smaller than the sum of its proper divisors (50157901080315).

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

22491439040196 is an frugal number, since it uses more digits than its factorization.

22491439040196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648 (or 314 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 54.

The spelling of 22491439040196 in words is "twenty-two trillion, four hundred ninety-one billion, four hundred thirty-nine million, forty thousand, one hundred ninety-six".