26450105660 has 48 divisors (see below), whose sum is σ = 60684634080. Its totient is φ = 9603959040.

The previous prime is 26450105653. The next prime is 26450105749. The reversal of 26450105660 is 6650105462.

It is a self number, because there is not a number n which added to its sum of digits gives 26450105660.

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, 60146 + ... + 237734.

It is an arithmetic number, because the mean of its divisors is an integer number (1264263210).

Almost surely, 2^26450105660 is an apocalyptic number.

26450105660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26450105660 is an abundant number, since it is smaller than the sum of its proper divisors (34234528420).

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

26450105660 is a wasteful number, since it uses less digits than its factorization.

26450105660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178286 (or 178284 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 26450105660 in words is "twenty-six billion, four hundred fifty million, one hundred five thousand, six hundred sixty".