26664086710080 has 280 divisors, whose sum is σ = 95015593819080. Its totient is φ = 7097922846720.

The previous prime is 26664086710043. The next prime is 26664086710091. The reversal of 26664086710080 is 8001768046662.

It can be written as a sum of positive squares in 4 ways, for example, as 5005636579584 + 21658450130496 = 2237328^2 + 4653864^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 26664086709999 and 26664086710026.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 13844520 + ... + 15652440.

Almost surely, 2^{26664086710080} is an apocalyptic number.

26664086710080 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 26664086710080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47507796909540).

26664086710080 is an abundant number, since it is smaller than the sum of its proper divisors (68351507109000).

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

26664086710080 is a wasteful number, since it uses less digits than its factorization.

26664086710080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1808519 (or 1808500 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 26664086710080 in words is "twenty-six trillion, six hundred sixty-four billion, eighty-six million, seven hundred ten thousand, eighty".