26052551665 has 32 divisors (see below), whose sum is σ = 36239892480. Its totient is φ = 17610001344.

The previous prime is 26052551647. The next prime is 26052551713. The reversal of 26052551665 is 56615525062.

It is a cyclic number.

It is not a de Polignac number, because 26052551665 - 2¹¹ = 26052549617 is a prime.

It is an unprimeable number.

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, 1781674 + ... + 1796236.

It is an arithmetic number, because the mean of its divisors is an integer number (1132496640).

Almost surely, 2^26052551665 is an apocalyptic number.

It is an amenable number.

26052551665 is a deficient number, since it is larger than the sum of its proper divisors (10187340815).

26052551665 is a wasteful number, since it uses less digits than its factorization.

26052551665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15301.

The product of its (nonzero) digits is 540000, while the sum is 43.

The spelling of 26052551665 in words is "twenty-six billion, fifty-two million, five hundred fifty-one thousand, six hundred sixty-five".