2195689466880 has 3168 divisors, whose sum is σ = 10437711298560. Its totient is φ = 421382062080.

The previous prime is 2195689466869. The next prime is 2195689466881. The reversal of 2195689466880 is 886649865912.

2195689466880 is a `hidden beast` number, since 2 + 1 + 9 + 5 + 6 + 89 + 466 + 8 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 2195689466799 and 2195689466808.

It is not an unprimeable number, because it can be changed into a prime (2195689466881) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 17288893377 + ... + 17288893503.

Almost surely, 2^{2195689466880} is an apocalyptic number.

2195689466880 is a gapful number since it is divisible by the number (20) 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 2195689466880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5218855649280).

2195689466880 is an abundant number, since it is smaller than the sum of its proper divisors (8242021831680).

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

2195689466880 is a wasteful number, since it uses less digits than its factorization.

2195689466880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 358318080, while the sum is 72.

The spelling of 2195689466880 in words is "two trillion, one hundred ninety-five billion, six hundred eighty-nine million, four hundred sixty-six thousand, eight hundred eighty".