6651635425 has 12 divisors (see below), whose sum is σ = 8682135280. Its totient is φ = 5041239120.

The previous prime is 6651635423. The next prime is 6651635467. The reversal of 6651635425 is 5245361566.

6651635425 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6651635425 - 2¹ = 6651635423 is a prime.

It is a super-2 number, since 2×6651635425² = 88488507654229861250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6651635423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7001247 + ... + 7002196.

Almost surely, 2^6651635425 is an apocalyptic number.

It is an amenable number.

6651635425 is a deficient number, since it is larger than the sum of its proper divisors (2030499855).

6651635425 is a wasteful number, since it uses less digits than its factorization.

6651635425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14003472 (or 14003467 counting only the distinct ones).

The product of its digits is 648000, while the sum is 43.

The square root of 6651635425 is about 81557.5589691109. The cubic root of 6651635425 is about 1880.6564993517.

The spelling of 6651635425 in words is "six billion, six hundred fifty-one million, six hundred thirty-five thousand, four hundred twenty-five".