1225243234664 has 32 divisors (see below), whose sum is σ = 2318962608000. Its totient is φ = 606854002560.

The previous prime is 1225243234651. The next prime is 1225243234669. The reversal of 1225243234664 is 4664323425221.

It is not an unprimeable number, because it can be changed into a prime (1225243234669) 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, 14895329 + ... + 14977359.

It is an arithmetic number, because the mean of its divisors is an integer number (72467581500).

Almost surely, 2^{1225243234664} is an apocalyptic number.

It is an amenable number.

1225243234664 is a deficient number, since it is larger than the sum of its proper divisors (1093719373336).

1225243234664 is a wasteful number, since it uses less digits than its factorization.

1225243234664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99593 (or 99589 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 44.

Adding to 1225243234664 its reverse (4664323425221), we get a palindrome (5889566659885).

The spelling of 1225243234664 in words is "one trillion, two hundred twenty-five billion, two hundred forty-three million, two hundred thirty-four thousand, six hundred sixty-four".