26065664 has 36 divisors (see below), whose sum is σ = 53838960. Its totient is φ = 12579840.

The previous prime is 26065657. The next prime is 26065673. The reversal of 26065664 is 46656062.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5669 + ... + 9179.

Almost surely, 2^26065664 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 26065664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26919480).

26065664 is an abundant number, since it is smaller than the sum of its proper divisors (27773296).

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

26065664 is an equidigital number, since it uses as much as digits as its factorization.

26065664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3556 (or 3542 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 26065664 is about 5105.4543382543. The cubic root of 26065664 is about 296.4987937734.

The spelling of 26065664 in words is "twenty-six million, sixty-five thousand, six hundred sixty-four".