1232553145544 has 32 divisors (see below), whose sum is σ = 2654592367680. Its totient is φ = 525555651264.

The previous prime is 1232553145543. The next prime is 1232553145583. The reversal of 1232553145544 is 4455413552321.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1232553145495 and 1232553145504.

It is not an unprimeable number, because it can be changed into a prime (1232553145543) 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, 55851602 + ... + 55873665.

It is an arithmetic number, because the mean of its divisors is an integer number (82956011490).

Almost surely, 2^{1232553145544} is an apocalyptic number.

1232553145544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1232553145544 is an abundant number, since it is smaller than the sum of its proper divisors (1422039222136).

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

1232553145544 is a wasteful number, since it uses less digits than its factorization.

1232553145544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111725477 (or 111725473 counting only the distinct ones).

The product of its digits is 1440000, while the sum is 44.

Adding to 1232553145544 its reverse (4455413552321), we get a palindrome (5687966697865).

The spelling of 1232553145544 in words is "one trillion, two hundred thirty-two billion, five hundred fifty-three million, one hundred forty-five thousand, five hundred forty-four".