2631161164 has 6 divisors (see below), whose sum is σ = 4604532044. Its totient is φ = 1315580580.

The previous prime is 2631161161. The next prime is 2631161189. The reversal of 2631161164 is 4611611362.

It is not an unprimeable number, because it can be changed into a prime (2631161161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328895142 + ... + 328895149.

Almost surely, 2^2631161164 is an apocalyptic number.

It is an amenable number.

2631161164 is a deficient number, since it is larger than the sum of its proper divisors (1973370880).

2631161164 is a wasteful number, since it uses less digits than its factorization.

2631161164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657790295 (or 657790293 counting only the distinct ones).

The product of its digits is 5184, while the sum is 31.

The square root of 2631161164 is about 51294.8453940549. The cubic root of 2631161164 is about 1380.5404947149.

The spelling of 2631161164 in words is "two billion, six hundred thirty-one million, one hundred sixty-one thousand, one hundred sixty-four".