26105664 has 56 divisors (see below), whose sum is σ = 74391520. Its totient is φ = 8031744.

The previous prime is 26105657. The next prime is 26105719. The reversal of 26105664 is 46650162.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 2734 + ... + 7725.

It is an arithmetic number, because the mean of its divisors is an integer number (1328420).

Almost surely, 2^26105664 is an apocalyptic number.

26105664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

26105664 is an abundant number, since it is smaller than the sum of its proper divisors (48285856).

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

26105664 is a wasteful number, since it uses less digits than its factorization.

26105664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10487 (or 10477 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 26105664 is about 5109.3702155941. The cubic root of 26105664 is about 296.6503838782.

The spelling of 26105664 in words is "twenty-six million, one hundred five thousand, six hundred sixty-four".