6651086783 has 16 divisors (see below), whose sum is σ = 7688079360. Its totient is φ = 5686665600.

The previous prime is 6651086731. The next prime is 6651086803. The reversal of 6651086783 is 3876801566.

It is a happy number.

It is not a de Polignac number, because 6651086783 - 2³⁰ = 5577344959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6651086713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 262988 + ... + 287166.

It is an arithmetic number, because the mean of its divisors is an integer number (480504960).

Almost surely, 2^6651086783 is an apocalyptic number.

6651086783 is a deficient number, since it is larger than the sum of its proper divisors (1036992577).

6651086783 is a wasteful number, since it uses less digits than its factorization.

6651086783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25678.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The square root of 6651086783 is about 81554.1953733835. The cubic root of 6651086783 is about 1880.6047909899.

The spelling of 6651086783 in words is "six billion, six hundred fifty-one million, eighty-six thousand, seven hundred eighty-three".