26091166680 has 96 divisors (see below), whose sum is σ = 85067573760. Its totient is φ = 6935385600.

The previous prime is 26091166669. The next prime is 26091166711. The reversal of 26091166680 is 8666119062.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3096 + ... + 228455.

It is an arithmetic number, because the mean of its divisors is an integer number (886120560).

Almost surely, 2^26091166680 is an apocalyptic number.

26091166680 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 26091166680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42533786880).

26091166680 is an abundant number, since it is smaller than the sum of its proper divisors (58976407080).

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

26091166680 is a wasteful number, since it uses less digits than its factorization.

26091166680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231881 (or 231874 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The spelling of 26091166680 in words is "twenty-six billion, ninety-one million, one hundred sixty-six thousand, six hundred eighty".