2199023255549 has 8 divisors (see below), whose sum is σ = 2311141116480. Its totient is φ = 2088281074176.

The previous prime is 2199023255531. The next prime is 2199023255579. The reversal of 2199023255549 is 9455523209912.

It is a happy number.

2199023255549 is nontrivially palindromic in base 4.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-2199023255549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2199023255494 and 2199023255503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2199023255579) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 343916612 + ... + 343923005.

It is an arithmetic number, because the mean of its divisors is an integer number (288892639560).

Almost surely, 2^{2199023255549} is an apocalyptic number.

It is an amenable number.

2199023255549 is a deficient number, since it is larger than the sum of its proper divisors (112117860931).

2199023255549 is a wasteful number, since it uses less digits than its factorization.

2199023255549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687839779.

The product of its (nonzero) digits is 8748000, while the sum is 56.

The spelling of 2199023255549 in words is "two trillion, one hundred ninety-nine billion, twenty-three million, two hundred fifty-five thousand, five hundred forty-nine".