6161622625 has 16 divisors (see below), whose sum is σ = 7717509072. Its totient is φ = 4911475200.

The previous prime is 6161622619. The next prime is 6161622631. The reversal of 6161622625 is 5262261616.

6161622625 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (6161622619) and next prime (6161622631).

It can be written as a sum of positive squares in 8 ways, for example, as 3823319889 + 2338302736 = 61833^2 + 48356^2 .

It is a de Polignac number, because none of the positive numbers 2^k-6161622625 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54352 + ... + 123601.

It is an arithmetic number, because the mean of its divisors is an integer number (482344317).

Almost surely, 2^6161622625 is an apocalyptic number.

It is an amenable number.

6161622625 is a deficient number, since it is larger than the sum of its proper divisors (1555886447).

6161622625 is a wasteful number, since it uses less digits than its factorization.

6161622625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178245 (or 178235 counting only the distinct ones).

The product of its digits is 51840, while the sum is 37.

The square root of 6161622625 is about 78496.0038791785. The cubic root of 6161622625 is about 1833.2922336976.

The spelling of 6161622625 in words is "six billion, one hundred sixty-one million, six hundred twenty-two thousand, six hundred twenty-five".