26565426142661 has 8 divisors (see below), whose sum is σ = 30360813755904. Its totient is φ = 22770120213360.

The previous prime is 26565426142649. The next prime is 26565426142711. The reversal of 26565426142661 is 16624162456562.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26565426142661 - 2²⁶ = 26565359033797 is a prime.

It is a super-2 number, since 2×26565426142661² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 26565426142597 and 26565426142606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26565426142621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19722485 + ... + 21026346.

It is an arithmetic number, because the mean of its divisors is an integer number (3795101719488).

Almost surely, 2^{26565426142661} is an apocalyptic number.

It is an amenable number.

26565426142661 is a deficient number, since it is larger than the sum of its proper divisors (3795387613243).

26565426142661 is an equidigital number, since it uses as much as digits as its factorization.

26565426142661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40841971.

The product of its digits is 24883200, while the sum is 56.

The spelling of 26565426142661 in words is "twenty-six trillion, five hundred sixty-five billion, four hundred twenty-six million, one hundred forty-two thousand, six hundred sixty-one".