26556461334 has 128 divisors (see below), whose sum is σ = 66488688000. Its totient is φ = 7800274944.

The previous prime is 26556461279. The next prime is 26556461369. The reversal of 26556461334 is 43316465562.

26556461334 is a `hidden beast` number, since 2 + 6 + 556 + 4 + 61 + 3 + 34 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 26556461334.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1804534 + ... + 1819190.

It is an arithmetic number, because the mean of its divisors is an integer number (519442875).

Almost surely, 2^26556461334 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26556461334, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33244344000).

26556461334 is an abundant number, since it is smaller than the sum of its proper divisors (39932226666).

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

26556461334 is a wasteful number, since it uses less digits than its factorization.

26556461334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14799 (or 14793 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 45.

The spelling of 26556461334 in words is "twenty-six billion, five hundred fifty-six million, four hundred sixty-one thousand, three hundred thirty-four".