12553690661071 has 32 divisors (see below), whose sum is σ = 15127986944000. Its totient is φ = 10176567505632.

The previous prime is 12553690661011. The next prime is 12553690661077. The reversal of 12553690661071 is 17016609635521.

12553690661071 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12553690661071 - 2¹⁹ = 12553690136783 is a prime.

It is a super-2 number, since 2×12553690661071² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12553690661077) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 296707300 + ... + 296749606.

It is an arithmetic number, because the mean of its divisors is an integer number (472749592000).

Almost surely, 2^{12553690661071} is an apocalyptic number.

12553690661071 is a deficient number, since it is larger than the sum of its proper divisors (2574296282929).

12553690661071 is a wasteful number, since it uses less digits than its factorization.

12553690661071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46091.

The product of its (nonzero) digits is 2041200, while the sum is 52.

The spelling of 12553690661071 in words is "twelve trillion, five hundred fifty-three billion, six hundred ninety million, six hundred sixty-one thousand, seventy-one".