2251224546544 has 20 divisors (see below), whose sum is σ = 4361852787840. Its totient is φ = 1125585117440.

The previous prime is 2251224546499. The next prime is 2251224546551. The reversal of 2251224546544 is 4456454221522.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2251224546494 and 2251224546503.

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 3 ways as a sum of consecutive naturals, for example, 1004752 + ... + 2347759.

It is an arithmetic number, because the mean of its divisors is an integer number (218092639392).

Almost surely, 2^{2251224546544} is an apocalyptic number.

It is an amenable number.

2251224546544 is a deficient number, since it is larger than the sum of its proper divisors (2110628241296).

2251224546544 is a wasteful number, since it uses less digits than its factorization.

2251224546544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3394488 (or 3394482 counting only the distinct ones).

The product of its digits is 3072000, while the sum is 46.

The spelling of 2251224546544 in words is "two trillion, two hundred fifty-one billion, two hundred twenty-four million, five hundred forty-six thousand, five hundred forty-four".