26696331216 has 300 divisors, whose sum is σ = 83506982592. Its totient is φ = 8228158848.

The previous prime is 26696331203. The next prime is 26696331227. The reversal of 26696331216 is 61213369662.

26696331216 is a `hidden beast` number, since 2 + 6 + 6 + 9 + 633 + 1 + 2 + 1 + 6 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 20117145 + ... + 20118471.

Almost surely, 2^26696331216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26696331216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41753491296).

26696331216 is an abundant number, since it is smaller than the sum of its proper divisors (56810651376).

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

26696331216 is a wasteful number, since it uses less digits than its factorization.

26696331216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428 (or 1394 counting only the distinct ones).

The product of its digits is 419904, while the sum is 45.

The spelling of 26696331216 in words is "twenty-six billion, six hundred ninety-six million, three hundred thirty-one thousand, two hundred sixteen".