26520140066304 has 160 divisors (see below), whose sum is σ = 72395696441376. Its totient is φ = 8621911572480.

The previous prime is 26520140066261. The next prime is 26520140066359. The reversal of 26520140066304 is 40366004102562.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221426724 + ... + 221546460.

Almost surely, 2^{26520140066304} is an apocalyptic number.

26520140066304 is a gapful number since it is divisible by the number (24) 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 26520140066304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36197848220688).

26520140066304 is an abundant number, since it is smaller than the sum of its proper divisors (45875556375072).

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

26520140066304 is a wasteful number, since it uses less digits than its factorization.

26520140066304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123316 (or 123300 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 39.

Adding to 26520140066304 its reverse (40366004102562), we get a palindrome (66886144168866).

The spelling of 26520140066304 in words is "twenty-six trillion, five hundred twenty billion, one hundred forty million, sixty-six thousand, three hundred four".