2223444445690 has 24 divisors (see below), whose sum is σ = 4333743200988. Its totient is φ = 820964102400.

The previous prime is 2223444445667. The next prime is 2223444445693. The reversal of 2223444445690 is 965444443222.

It can be written as a sum of positive squares in 6 ways, for example, as 626185759761 + 1597258685929 = 791319^2 + 1263827^2 .

It is a super-2 number, since 2×2223444445690² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (2223444445693) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 657822111 + ... + 657825490.

Almost surely, 2^{2223444445690} is an apocalyptic number.

2223444445690 is a deficient number, since it is larger than the sum of its proper divisors (2110298755298).

2223444445690 is a wasteful number, since it uses less digits than its factorization.

2223444445690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315647634 (or 1315647621 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 49.

The spelling of 2223444445690 in words is "two trillion, two hundred twenty-three billion, four hundred forty-four million, four hundred forty-five thousand, six hundred ninety".