26606005512 has 128 divisors (see below), whose sum is σ = 69215109120. Its totient is φ = 8517600000.

The previous prime is 26606005511. The next prime is 26606005529. The reversal of 26606005512 is 21550060662.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (26606005511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13636137 + ... + 13638087.

It is an arithmetic number, because the mean of its divisors is an integer number (540743040).

Almost surely, 2^26606005512 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 26606005512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34607554560).

26606005512 is an abundant number, since it is smaller than the sum of its proper divisors (42609103608).

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

26606005512 is a wasteful number, since it uses less digits than its factorization.

26606005512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2235 (or 2231 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The spelling of 26606005512 in words is "twenty-six billion, six hundred six million, five thousand, five hundred twelve".