26766755565560 has 16 divisors (see below), whose sum is σ = 60225200022600. Its totient is φ = 10706702226208.

The previous prime is 26766755565559. The next prime is 26766755565581. The reversal of 26766755565560 is 6556555766762.

It is a super-2 number, since 2×26766755565560² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 334584444530 + ... + 334584444609.

Almost surely, 2^{26766755565560} is an apocalyptic number.

26766755565560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26766755565560 is an abundant number, since it is smaller than the sum of its proper divisors (33458444457040).

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

26766755565560 is a wasteful number, since it uses less digits than its factorization.

26766755565560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669168889150 (or 669168889146 counting only the distinct ones).

The product of its (nonzero) digits is 2381400000, while the sum is 71.

The spelling of 26766755565560 in words is "twenty-six trillion, seven hundred sixty-six billion, seven hundred fifty-five million, five hundred sixty-five thousand, five hundred sixty".