12655037841664 has 27 divisors (see below), whose sum is σ = 25260755556477. Its totient is φ = 6327490461696.

The previous prime is 12655037841629. The next prime is 12655037841779. The reversal of 12655037841664 is 46614873055621.

The square root of 12655037841664 is 3557392.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 8374309945600 + 4280727896064 = 2893840^2 + 2068992^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12655037841599 and 12655037841608.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 56807104 + ... + 57029440.

Almost surely, 2^{12655037841664} is an apocalyptic number.

12655037841664 is the 3557392-nd square number.

It is an amenable number.

12655037841664 is a deficient number, since it is larger than the sum of its proper divisors (12605717714813).

12655037841664 is an frugal number, since it uses more digits than its factorization.

12655037841664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444690 (or 222339 counting only the distinct ones).

The product of its (nonzero) digits is 29030400, while the sum is 58.

The spelling of 12655037841664 in words is "twelve trillion, six hundred fifty-five billion, thirty-seven million, eight hundred forty-one thousand, six hundred sixty-four".