21843550160 has 40 divisors (see below), whose sum is σ = 50795930400. Its totient is φ = 8735755392.

The previous prime is 21843550153. The next prime is 21843550199. The reversal of 21843550160 is 6105534812.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 21843550160.

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 7 ways as a sum of consecutive naturals, for example, 450791 + ... + 496889.

It is an arithmetic number, because the mean of its divisors is an integer number (1269898260).

Almost surely, 2^21843550160 is an apocalyptic number.

21843550160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21843550160 is an abundant number, since it is smaller than the sum of its proper divisors (28952380240).

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

21843550160 is a wasteful number, since it uses less digits than its factorization.

21843550160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52035 (or 52029 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

The spelling of 21843550160 in words is "twenty-one billion, eight hundred forty-three million, five hundred fifty thousand, one hundred sixty".