22453554420 has 144 divisors (see below), whose sum is σ = 75037173120. Its totient is φ = 5389344000.

The previous prime is 22453554379. The next prime is 22453554433. The reversal of 22453554420 is 2445535422.

22453554420 is a `hidden beast` number, since 2 + 245 + 355 + 44 + 20 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 143841 + ... + 256119.

It is an arithmetic number, because the mean of its divisors is an integer number (521091480).

Almost surely, 2^22453554420 is an apocalyptic number.

22453554420 is a gapful number since it is divisible by the number (20) 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 22453554420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37518586560).

22453554420 is an abundant number, since it is smaller than the sum of its proper divisors (52583618700).

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

22453554420 is a wasteful number, since it uses less digits than its factorization.

22453554420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112406 (or 112401 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 36.

The spelling of 22453554420 in words is "twenty-two billion, four hundred fifty-three million, five hundred fifty-four thousand, four hundred twenty".