1320609954272 has 48 divisors (see below), whose sum is σ = 2971677496032. Its totient is φ = 565917580800.

The previous prime is 1320609954233. The next prime is 1320609954283. The reversal of 1320609954272 is 2724599060231.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1320609954272.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1920098 + ... + 2515550.

It is an arithmetic number, because the mean of its divisors is an integer number (61909947834).

Almost surely, 2^{1320609954272} is an apocalyptic number.

It is an amenable number.

1320609954272 is an abundant number, since it is smaller than the sum of its proper divisors (1651067541760).

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

1320609954272 is an equidigital number, since it uses as much as digits as its factorization.

1320609954272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605371 (or 605363 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 50.

The spelling of 1320609954272 in words is "one trillion, three hundred twenty billion, six hundred nine million, nine hundred fifty-four thousand, two hundred seventy-two".