1445123161472 has 32 divisors (see below), whose sum is σ = 2904433816680. Its totient is φ = 716167223296.

The previous prime is 1445123161453. The next prime is 1445123161507. The reversal of 1445123161472 is 2741613215441.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49941398 + ... + 49970325.

Almost surely, 2^{1445123161472} is an apocalyptic number.

It is an amenable number.

1445123161472 is an abundant number, since it is smaller than the sum of its proper divisors (1459310655208).

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

1445123161472 is an equidigital number, since it uses as much as digits as its factorization.

1445123161472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99911850 (or 99911838 counting only the distinct ones).

The product of its digits is 161280, while the sum is 41.

The spelling of 1445123161472 in words is "one trillion, four hundred forty-five billion, one hundred twenty-three million, one hundred sixty-one thousand, four hundred seventy-two".