1320088487856 has 40 divisors (see below), whose sum is σ = 3422278906560. Its totient is φ = 438474616896.

The previous prime is 1320088487833. The next prime is 1320088487857. The reversal of 1320088487856 is 6587848800231.

It is a self number, because there is not a number n which added to its sum of digits gives 1320088487856.

It is not an unprimeable number, because it can be changed into a prime (1320088487857) by changing a digit.

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, 48576246 + ... + 48603413.

It is an arithmetic number, because the mean of its divisors is an integer number (85556972664).

Almost surely, 2^{1320088487856} is an apocalyptic number.

1320088487856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1320088487856 is an abundant number, since it is smaller than the sum of its proper divisors (2102190418704).

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

1320088487856 is a wasteful number, since it uses less digits than its factorization.

1320088487856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97179953 (or 97179947 counting only the distinct ones).

The product of its (nonzero) digits is 20643840, while the sum is 60.

The spelling of 1320088487856 in words is "one trillion, three hundred twenty billion, eighty-eight million, four hundred eighty-seven thousand, eight hundred fifty-six".