13126601245261 has 16 divisors (see below), whose sum is σ = 15048695377408. Its totient is φ = 11216265696000.

The previous prime is 13126601245249. The next prime is 13126601245291. The reversal of 13126601245261 is 16254210662131.

It is a cyclic number.

It is not a de Polignac number, because 13126601245261 - 2¹⁵ = 13126601212493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13126601245291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1972111 + ... + 5490211.

It is an arithmetic number, because the mean of its divisors is an integer number (940543461088).

Almost surely, 2^{13126601245261} is an apocalyptic number.

It is an amenable number.

13126601245261 is a deficient number, since it is larger than the sum of its proper divisors (1922094132147).

13126601245261 is a wasteful number, since it uses less digits than its factorization.

13126601245261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3519772.

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 13126601245261 in words is "thirteen trillion, one hundred twenty-six billion, six hundred one million, two hundred forty-five thousand, two hundred sixty-one".