26330215552 has 64 divisors (see below), whose sum is σ = 54198915840. Its totient is φ = 12728171520.

The previous prime is 26330215547. The next prime is 26330215577. The reversal of 26330215552 is 25551203362.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5183638 + ... + 5188714.

It is an arithmetic number, because the mean of its divisors is an integer number (846858060).

Almost surely, 2^26330215552 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 26330215552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27099457920).

26330215552 is an abundant number, since it is smaller than the sum of its proper divisors (27868700288).

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

26330215552 is a wasteful number, since it uses less digits than its factorization.

26330215552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6429 (or 6417 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 34.

The spelling of 26330215552 in words is "twenty-six billion, three hundred thirty million, two hundred fifteen thousand, five hundred fifty-two".