6161081571 has 12 divisors (see below), whose sum is σ = 9422830872. Its totient is φ = 3865776576.

The previous prime is 6161081543. The next prime is 6161081573. The reversal of 6161081571 is 1751801616.

6161081571 is a `hidden beast` number, since 6 + 1 + 6 + 1 + 0 + 81 + 571 = 666.

It is not a de Polignac number, because 6161081571 - 2¹⁴ = 6161065187 is a prime.

It is a super-2 number, since 2×6161081571² = 75917852249031656082, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6161081573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20134101 + ... + 20134406.

It is an arithmetic number, because the mean of its divisors is an integer number (785235906).

Almost surely, 2^6161081571 is an apocalyptic number.

6161081571 is a deficient number, since it is larger than the sum of its proper divisors (3261749301).

6161081571 is a wasteful number, since it uses less digits than its factorization.

6161081571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40268530 (or 40268527 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 36.

The square root of 6161081571 is about 78492.5574242552. The cubic root of 6161081571 is about 1833.2385714730.

The spelling of 6161081571 in words is "six billion, one hundred sixty-one million, eighty-one thousand, five hundred seventy-one".