6651610125 has 32 divisors (see below), whose sum is σ = 11080003584. Its totient is φ = 3543768000.

The previous prime is 6651610109. The next prime is 6651610127. The reversal of 6651610125 is 5210161566.

It is not a de Polignac number, because 6651610125 - 2⁴ = 6651610109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6651610127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 364980 + ... + 382770.

It is an arithmetic number, because the mean of its divisors is an integer number (346250112).

Almost surely, 2^6651610125 is an apocalyptic number.

It is an amenable number.

6651610125 is a deficient number, since it is larger than the sum of its proper divisors (4428393459).

6651610125 is a wasteful number, since it uses less digits than its factorization.

6651610125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18806 (or 18796 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 6651610125 is about 81557.4038637817. The cubic root of 6651610125 is about 1880.6541149421.

The spelling of 6651610125 in words is "six billion, six hundred fifty-one million, six hundred ten thousand, one hundred twenty-five".