11326455321580 has 72 divisors (see below), whose sum is σ = 29296495404288. Its totient is φ = 3654923392512.

The previous prime is 11326455321547. The next prime is 11326455321581. The reversal of 11326455321580 is 8512355462311.

It is a self number, because there is not a number n which added to its sum of digits gives 11326455321580.

It is not an unprimeable number, because it can be changed into a prime (11326455321581) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 339912972 + ... + 339946291.

It is an arithmetic number, because the mean of its divisors is an integer number (406895769504).

Almost surely, 2^{11326455321580} is an apocalyptic number.

11326455321580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11326455321580 is an abundant number, since it is smaller than the sum of its proper divisors (17970040082708).

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

11326455321580 is a wasteful number, since it uses less digits than its factorization.

11326455321580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679859303 (or 679859294 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 46.

The spelling of 11326455321580 in words is "eleven trillion, three hundred twenty-six billion, four hundred fifty-five million, three hundred twenty-one thousand, five hundred eighty".