2771671161 has 8 divisors (see below), whose sum is σ = 4223498944. Its totient is φ = 1583812080.

The previous prime is 2771671159. The next prime is 2771671171. The reversal of 2771671161 is 1611761772.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2771671161 - 2¹ = 2771671159 is a prime.

It is a super-2 number, since 2×2771671161² = 15364322049438175842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2771671171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65992150 + ... + 65992191.

It is an arithmetic number, because the mean of its divisors is an integer number (527937368).

Almost surely, 2^2771671161 is an apocalyptic number.

2771671161 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2771671161 is a deficient number, since it is larger than the sum of its proper divisors (1451827783).

2771671161 is a wasteful number, since it uses less digits than its factorization.

2771671161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131984351.

The product of its digits is 24696, while the sum is 39.

The square root of 2771671161 is about 52646.6633415642. The cubic root of 2771671161 is about 1404.6902490459.

The spelling of 2771671161 in words is "two billion, seven hundred seventy-one million, six hundred seventy-one thousand, one hundred sixty-one".