6631658655 has 64 divisors (see below), whose sum is σ = 11400238080. Its totient is φ = 3284176896.

The previous prime is 6631658641. The next prime is 6631658743. The reversal of 6631658655 is 5568561366.

It is a happy number.

Together with 4768579424 it forms a betrothed pair.

It is not a de Polignac number, because 6631658655 - 2⁵ = 6631658623 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6631658598 and 6631658607.

It is a congruent 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 63 ways as a sum of consecutive naturals, for example, 1771776 + ... + 1775514.

It is an arithmetic number, because the mean of its divisors is an integer number (178128720).

Almost surely, 2^6631658655 is an apocalyptic number.

6631658655 is a deficient number, since it is larger than the sum of its proper divisors (4768579425).

6631658655 is a wasteful number, since it uses less digits than its factorization.

6631658655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3920.

The product of its digits is 3888000, while the sum is 51.

The square root of 6631658655 is about 81434.9965002762. The cubic root of 6631658655 is about 1878.7718943677.

The spelling of 6631658655 in words is "six billion, six hundred thirty-one million, six hundred fifty-eight thousand, six hundred fifty-five".