6161660105 has 4 divisors (see below), whose sum is σ = 7393992132. Its totient is φ = 4929328080.

The previous prime is 6161660051. The next prime is 6161660107. The reversal of 6161660105 is 5010661616.

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 4272975424 + 1888684681 = 65368^2 + 43459^2 .

It is not a de Polignac number, because 6161660105 - 2¹⁰ = 6161659081 is a prime.

It is a super-2 number, since 2×6161660105² = 75932110499097222050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6161660107) 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, 616166006 + ... + 616166015.

It is an arithmetic number, because the mean of its divisors is an integer number (1848498033).

Almost surely, 2^6161660105 is an apocalyptic number.

It is an amenable number.

6161660105 is a deficient number, since it is larger than the sum of its proper divisors (1232332027).

6161660105 is a wasteful number, since it uses less digits than its factorization.

6161660105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232332026.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 6161660105 is about 78496.2426170833. The cubic root of 6161660105 is about 1833.2959508815.

The spelling of 6161660105 in words is "six billion, one hundred sixty-one million, six hundred sixty thousand, one hundred five".