11621664834816 has 36 divisors (see below), whose sum is σ = 30930576723872. Its totient is φ = 3873888278016.

The previous prime is 11621664834811. The next prime is 11621664834851. The reversal of 11621664834816 is 61843846612611.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11621664834811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7566187276 + ... + 7566188811.

Almost surely, 2^{11621664834816} is an apocalyptic number.

11621664834816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11621664834816 is an abundant number, since it is smaller than the sum of its proper divisors (19308911889056).

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

11621664834816 is an equidigital number, since it uses as much as digits as its factorization.

11621664834816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15132376106 (or 15132376092 counting only the distinct ones).

The product of its digits is 7962624, while the sum is 57.

The spelling of 11621664834816 in words is "eleven trillion, six hundred twenty-one billion, six hundred sixty-four million, eight hundred thirty-four thousand, eight hundred sixteen".