2235555521440 has 192 divisors, whose sum is σ = 5541338234880. Its totient is φ = 851213214720.

The previous prime is 2235555521417. The next prime is 2235555521449. The reversal of 2235555521440 is 441255555322.

It is not an unprimeable number, because it can be changed into a prime (2235555521449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 245579929 + ... + 245589031.

It is an arithmetic number, because the mean of its divisors is an integer number (28861136640).

Almost surely, 2^{2235555521440} is an apocalyptic number.

2235555521440 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 2235555521440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2770669117440).

2235555521440 is an abundant number, since it is smaller than the sum of its proper divisors (3305782713440).

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

2235555521440 is a wasteful number, since it uses less digits than its factorization.

2235555521440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9955 (or 9947 counting only the distinct ones).

The product of its (nonzero) digits is 1200000, while the sum is 43.

The spelling of 2235555521440 in words is "two trillion, two hundred thirty-five billion, five hundred fifty-five million, five hundred twenty-one thousand, four hundred forty".