6165620105 has 4 divisors (see below), whose sum is σ = 7398744132. Its totient is φ = 4932496080.

The previous prime is 6165620063. The next prime is 6165620107. The reversal of 6165620105 is 5010265616.

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 2128161424 + 4037458681 = 46132^2 + 63541^2 .

It is a de Polignac number, because none of the positive numbers 2^k-6165620105 is a prime.

It is a super-2 number, since 2×6165620105² = 76029742558360422050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6165620107) 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, 616562006 + ... + 616562015.

It is an arithmetic number, because the mean of its divisors is an integer number (1849686033).

Almost surely, 2^6165620105 is an apocalyptic number.

It is an amenable number.

6165620105 is a deficient number, since it is larger than the sum of its proper divisors (1233124027).

6165620105 is a wasteful number, since it uses less digits than its factorization.

6165620105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233124026.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 6165620105 is about 78521.4627028814. The cubic root of 6165620105 is about 1833.6886100639.

The spelling of 6165620105 in words is "six billion, one hundred sixty-five million, six hundred twenty thousand, one hundred five".