6694111226880 has 5280 divisors, whose sum is σ = 34154650252800. Its totient is φ = 1219236986880.

The previous prime is 6694111226837. The next prime is 6694111226917. The reversal of 6694111226880 is 886221114966.

It is a tau number, because it is divible by the number of its divisors (5280).

It is a super-2 number, since 2×6694111226880² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 479 ways as a sum of consecutive naturals, for example, 113459512291 + ... + 113459512349.

It is an arithmetic number, because the mean of its divisors is an integer number (6468683760).

Almost surely, 2^{6694111226880} is an apocalyptic number.

6694111226880 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6694111226880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17077325126400).

6694111226880 is an abundant number, since it is smaller than the sum of its proper divisors (27460539025920).

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

6694111226880 is a wasteful number, since it uses less digits than its factorization.

6694111226880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

The spelling of 6694111226880 in words is "six trillion, six hundred ninety-four billion, one hundred eleven million, two hundred twenty-six thousand, eight hundred eighty".