1225453663632 has 80 divisors (see below), whose sum is σ = 3492355314240. Its totient is φ = 367177113600.

The previous prime is 1225453663597. The next prime is 1225453663639. The reversal of 1225453663632 is 2363663545221.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (1225453663639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12991969 + ... + 13085952.

It is an arithmetic number, because the mean of its divisors is an integer number (43654441428).

Almost surely, 2^{1225453663632} is an apocalyptic number.

1225453663632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1225453663632 is an abundant number, since it is smaller than the sum of its proper divisors (2266901650608).

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

1225453663632 is a wasteful number, since it uses less digits than its factorization.

1225453663632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26078032 (or 26078026 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 48.

The spelling of 1225453663632 in words is "one trillion, two hundred twenty-five billion, four hundred fifty-three million, six hundred sixty-three thousand, six hundred thirty-two".