6271512437161 has 4 divisors (see below), whose sum is σ = 6271570268500. Its totient is φ = 6271454605824.

The previous prime is 6271512437131. The next prime is 6271512437167. The reversal of 6271512437161 is 1617342151726.

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 4880896025625 + 1390616411536 = 2209275^2 + 1179244^2 .

It is a cyclic number.

It is not a de Polignac number, because 6271512437161 - 2⁵ = 6271512437129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6271512437167) 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, 28752696 + ... + 28969993.

It is an arithmetic number, because the mean of its divisors is an integer number (1567892567125).

Almost surely, 2^{6271512437161} is an apocalyptic number.

It is an amenable number.

6271512437161 is a deficient number, since it is larger than the sum of its proper divisors (57831339).

6271512437161 is a wasteful number, since it uses less digits than its factorization.

6271512437161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57831338.

The product of its digits is 423360, while the sum is 46.

Adding to 6271512437161 its reverse (1617342151726), we get a palindrome (7888854588887).

The spelling of 6271512437161 in words is "six trillion, two hundred seventy-one billion, five hundred twelve million, four hundred thirty-seven thousand, one hundred sixty-one".