26705504660 has 24 divisors (see below), whose sum is σ = 56118738816. Its totient is φ = 10675120160.

The previous prime is 26705504603. The next prime is 26705504671. The reversal of 26705504660 is 6640550762.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 411632 + ... + 472071.

It is an arithmetic number, because the mean of its divisors is an integer number (2338280784).

Almost surely, 2^26705504660 is an apocalyptic number.

26705504660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26705504660 is an abundant number, since it is smaller than the sum of its proper divisors (29413234156).

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

26705504660 is a wasteful number, since it uses less digits than its factorization.

26705504660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885223 (or 885221 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 41.

The spelling of 26705504660 in words is "twenty-six billion, seven hundred five million, five hundred four thousand, six hundred sixty".