11966562880 has 56 divisors (see below), whose sum is σ = 29158094592. Its totient is φ = 4675302912.

The previous prime is 11966562877. The next prime is 11966562899. The reversal of 11966562880 is 8826566911.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 421072 + ... + 448591.

Almost surely, 2^11966562880 is an apocalyptic number.

11966562880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11966562880 is an abundant number, since it is smaller than the sum of its proper divisors (17191531712).

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

11966562880 is an equidigital number, since it uses as much as digits as its factorization.

11966562880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869723 (or 869713 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 52.

The spelling of 11966562880 in words is "eleven billion, nine hundred sixty-six million, five hundred sixty-two thousand, eight hundred eighty".