13261516156266 has 16 divisors (see below), whose sum is σ = 30312036928704. Its totient is φ = 3789004616064.

The previous prime is 13261516156171. The next prime is 13261516156283. The reversal of 13261516156266 is 66265161516231.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157875192295 + ... + 157875192378.

It is an arithmetic number, because the mean of its divisors is an integer number (1894502308044).

Almost surely, 2^{13261516156266} is an apocalyptic number.

13261516156266 is an abundant number, since it is smaller than the sum of its proper divisors (17050520772438).

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

13261516156266 is a wasteful number, since it uses less digits than its factorization.

13261516156266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315750384685.

The product of its digits is 2332800, while the sum is 51.

The spelling of 13261516156266 in words is "thirteen trillion, two hundred sixty-one billion, five hundred sixteen million, one hundred fifty-six thousand, two hundred sixty-six".