2266044640644 has 48 divisors (see below), whose sum is σ = 5517576570240. Its totient is φ = 722474184960.

The previous prime is 2266044640633. The next prime is 2266044640649. The reversal of 2266044640644 is 4460464406622.

It is a junction number, because it is equal to n+sod(n) for n = 2266044640593 and 2266044640602.

It is not an unprimeable number, because it can be changed into a prime (2266044640649) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 6313864 + ... + 6663104.

It is an arithmetic number, because the mean of its divisors is an integer number (114949511880).

Almost surely, 2^{2266044640644} is an apocalyptic number.

It is an amenable number.

2266044640644 is an abundant number, since it is smaller than the sum of its proper divisors (3251531929596).

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

2266044640644 is a wasteful number, since it uses less digits than its factorization.

2266044640644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372780 (or 372778 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 48.

The spelling of 2266044640644 in words is "two trillion, two hundred sixty-six billion, forty-four million, six hundred forty thousand, six hundred forty-four".