26171080561560 has 64 divisors (see below), whose sum is σ = 85650809114880. Its totient is φ = 6344504378240.

The previous prime is 26171080561553. The next prime is 26171080561573. The reversal of 26171080561560 is 6516508017162.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9913286772 + ... + 9913289411.

It is an arithmetic number, because the mean of its divisors is an integer number (1338293892420).

Almost surely, 2^{26171080561560} is an apocalyptic number.

26171080561560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26171080561560 is an abundant number, since it is smaller than the sum of its proper divisors (59479728553320).

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

26171080561560 is a wasteful number, since it uses less digits than its factorization.

26171080561560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19826576208 (or 19826576204 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 48.

The spelling of 26171080561560 in words is "twenty-six trillion, one hundred seventy-one billion, eighty million, five hundred sixty-one thousand, five hundred sixty".