5626660726121 has 4 divisors (see below), whose sum is σ = 5957640768852. Its totient is φ = 5295680683392.

The previous prime is 5626660726097. The next prime is 5626660726157. The reversal of 5626660726121 is 1216270666265.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1898363151721 + 3728297574400 = 1377811^2 + 1930880^2 .

It is a cyclic number.

It is not a de Polignac number, because 5626660726121 - 2³⁸ = 5351782819177 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5626660726121.

It is not an unprimeable number, because it can be changed into a prime (5626660725121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165490021340 + ... + 165490021373.

It is an arithmetic number, because the mean of its divisors is an integer number (1489410192213).

Almost surely, 2^{5626660726121} is an apocalyptic number.

It is an amenable number.

5626660726121 is a deficient number, since it is larger than the sum of its proper divisors (330980042731).

5626660726121 is a wasteful number, since it uses less digits than its factorization.

5626660726121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330980042730.

The product of its (nonzero) digits is 2177280, while the sum is 50.

The spelling of 5626660726121 in words is "five trillion, six hundred twenty-six billion, six hundred sixty million, seven hundred twenty-six thousand, one hundred twenty-one".