26553114052661 has 24 divisors (see below), whose sum is σ = 32321685555000. Its totient is φ = 21726857722752.

The previous prime is 26553114052537. The next prime is 26553114052721. The reversal of 26553114052661 is 16625041135562.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7327686580900 + 19225427471761 = 2706970^2 + 4384681^2 .

It is not a de Polignac number, because 26553114052661 - 2¹⁰ = 26553114051637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26553114012661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 138073286 + ... + 138265463.

It is an arithmetic number, because the mean of its divisors is an integer number (1346736898125).

Almost surely, 2^{26553114052661} is an apocalyptic number.

It is an amenable number.

26553114052661 is a deficient number, since it is larger than the sum of its proper divisors (5768571502339).

26553114052661 is a wasteful number, since it uses less digits than its factorization.

26553114052661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276338853 (or 276338846 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 47.

The spelling of 26553114052661 in words is "twenty-six trillion, five hundred fifty-three billion, one hundred fourteen million, fifty-two thousand, six hundred sixty-one".