26516340816880 has 20 divisors (see below), whose sum is σ = 61650492399432. Its totient is φ = 10606536326720.

The previous prime is 26516340816877. The next prime is 26516340816887. The reversal of 26516340816880 is 8861804361562.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26516340816887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165727130026 + ... + 165727130185.

Almost surely, 2^{26516340816880} is an apocalyptic number.

26516340816880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26516340816880 is an abundant number, since it is smaller than the sum of its proper divisors (35134151582552).

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

26516340816880 is a wasteful number, since it uses less digits than its factorization.

26516340816880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331454260224 (or 331454260218 counting only the distinct ones).

The product of its (nonzero) digits is 13271040, while the sum is 58.

The spelling of 26516340816880 in words is "twenty-six trillion, five hundred sixteen billion, three hundred forty million, eight hundred sixteen thousand, eight hundred eighty".