2217143837340 has 120 divisors (see below), whose sum is σ = 6964833107232. Its totient is φ = 590424785280.

The previous prime is 2217143837339. The next prime is 2217143837351. The reversal of 2217143837340 is 437383417122.

2217143837340 is a `hidden beast` number, since 2 + 2 + 171 + 438 + 3 + 7 + 3 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 236470 + ... + 2119010.

Almost surely, 2^{2217143837340} is an apocalyptic number.

2217143837340 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 2217143837340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3482416553616).

2217143837340 is an abundant number, since it is smaller than the sum of its proper divisors (4747689269892).

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

2217143837340 is a wasteful number, since it uses less digits than its factorization.

2217143837340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1883289 (or 1883278 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 45.

The spelling of 2217143837340 in words is "two trillion, two hundred seventeen billion, one hundred forty-three million, eight hundred thirty-seven thousand, three hundred forty".