6610501161 has 54 divisors (see below), whose sum is σ = 10702174574. Its totient is φ = 3928953600.

The previous prime is 6610501151. The next prime is 6610501211. The reversal of 6610501161 is 1611050166.

It can be written as a sum of positive squares in 3 ways, for example, as 2650190400 + 3960310761 = 51480^2 + 62931^2 .

It is not a de Polignac number, because 6610501161 - 2¹³ = 6610492969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6610501111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 3057921 + ... + 3060081.

Almost surely, 2^6610501161 is an apocalyptic number.

It is an amenable number.

6610501161 is a deficient number, since it is larger than the sum of its proper divisors (4091673413).

6610501161 is a wasteful number, since it uses less digits than its factorization.

6610501161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2295 (or 2228 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 6610501161 is about 81304.9885369895. The cubic root of 6610501161 is about 1876.7717686651.

The spelling of 6610501161 in words is "six billion, six hundred ten million, five hundred one thousand, one hundred sixty-one".