270643130126161 has 16 divisors (see below), whose sum is σ = 291534951330000. Its totient is φ = 249761757846528.

The previous prime is 270643130126153. The next prime is 270643130126189. The reversal of 270643130126161 is 161621031346072.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 89930494282561 + 180712635843600 = 9483169^2 + 13442940^2 .

It is a cyclic number.

It is not a de Polignac number, because 270643130126161 - 2³ = 270643130126153 is a prime.

It is a super-2 number, since 2×270643130126161² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (270643130126191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3852590965 + ... + 3852661213.

It is an arithmetic number, because the mean of its divisors is an integer number (18220934458125).

Almost surely, 2^{270643130126161} is an apocalyptic number.

It is an amenable number.

270643130126161 is a deficient number, since it is larger than the sum of its proper divisors (20891821203839).

270643130126161 is a wasteful number, since it uses less digits than its factorization.

270643130126161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140388.

The product of its (nonzero) digits is 217728, while the sum is 43.

The spelling of 270643130126161 in words is "two hundred seventy trillion, six hundred forty-three billion, one hundred thirty million, one hundred twenty-six thousand, one hundred sixty-one".