43220998656000 has 3328 divisors, whose sum is σ = 184076225049600. Its totient is φ = 10116513792000.

The previous prime is 43220998655977. The next prime is 43220998656041. The reversal of 43220998656000 is 65689902234.

It is a happy number.

43220998656000 is a `hidden beast` number, since 4 + 3 + 2 + 20 + 9 + 9 + 8 + 6 + 5 + 600 + 0 = 666.

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 (17) of ones.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 1490379263986 + ... + 1490379264014.

It is an arithmetic number, because the mean of its divisors is an integer number (55311365700).

Almost surely, 2^{43220998656000} is an apocalyptic number.

43220998656000 is a gapful number since it is divisible by the number (40) 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 43220998656000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92038112524800).

43220998656000 is an abundant number, since it is smaller than the sum of its proper divisors (140855226393600).

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

43220998656000 is an frugal number, since it uses more digits than its factorization.

43220998656000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122 (or 50 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 54.

The spelling of 43220998656000 in words is "forty-three trillion, two hundred twenty billion, nine hundred ninety-eight million, six hundred fifty-six thousand".