12771522106056 has 96 divisors (see below), whose sum is σ = 39531853108800. Its totient is φ = 3648918499200.

The previous prime is 12771522106037. The next prime is 12771522106127. The reversal of 12771522106056 is 65060122517721.

12771522106056 is a `hidden beast` number, since 1 + 2 + 7 + 7 + 1 + 5 + 22 + 10 + 605 + 6 = 666.

It is a super-2 number, since 2×12771522106056² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22322410 + ... + 22887398.

It is an arithmetic number, because the mean of its divisors is an integer number (411790136550).

Almost surely, 2^{12771522106056} is an apocalyptic number.

It is an amenable number.

12771522106056 is an abundant number, since it is smaller than the sum of its proper divisors (26760331002744).

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

12771522106056 is a wasteful number, since it uses less digits than its factorization.

12771522106056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609859 (or 609852 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The spelling of 12771522106056 in words is "twelve trillion, seven hundred seventy-one billion, five hundred twenty-two million, one hundred six thousand, fifty-six".