12655547766740 has 12 divisors (see below), whose sum is σ = 26576650310196. Its totient is φ = 5062219106688.

The previous prime is 12655547766713. The next prime is 12655547766787. The reversal of 12655547766740 is 4766774555621.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8218003290436 + 4437544476304 = 2866706^2 + 2106548^2 .

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, 316388694149 + ... + 316388694188.

It is an arithmetic number, because the mean of its divisors is an integer number (2214720859183).

Almost surely, 2^{12655547766740} is an apocalyptic number.

12655547766740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12655547766740 is an abundant number, since it is smaller than the sum of its proper divisors (13921102543456).

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

12655547766740 is a wasteful number, since it uses less digits than its factorization.

12655547766740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632777388346 (or 632777388344 counting only the distinct ones).

The product of its (nonzero) digits is 296352000, while the sum is 65.

The spelling of 12655547766740 in words is "twelve trillion, six hundred fifty-five billion, five hundred forty-seven million, seven hundred sixty-six thousand, seven hundred forty".