6616242625 has 16 divisors (see below), whose sum is σ = 8271471312. Its totient is φ = 5283763200.

The previous prime is 6616242623. The next prime is 6616242701. The reversal of 6616242625 is 5262426166.

It can be written as a sum of positive squares in 8 ways, for example, as 25563136 + 6590679489 = 5056^2 + 81183^2 .

It is not a de Polignac number, because 6616242625 - 2¹ = 6616242623 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6616242623) by changing a digit.

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, 26259 + ... + 117991.

It is an arithmetic number, because the mean of its divisors is an integer number (516966957).

Almost surely, 2^6616242625 is an apocalyptic number.

It is an amenable number.

6616242625 is a deficient number, since it is larger than the sum of its proper divisors (1655228687).

6616242625 is an equidigital number, since it uses as much as digits as its factorization.

6616242625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92325 (or 92315 counting only the distinct ones).

The product of its digits is 207360, while the sum is 40.

The square root of 6616242625 is about 81340.2890639073. The cubic root of 6616242625 is about 1877.3149599286.

The spelling of 6616242625 in words is "six billion, six hundred sixteen million, two hundred forty-two thousand, six hundred twenty-five".