6657475761 has 24 divisors (see below), whose sum is σ = 9719592896. Its totient is φ = 4390757280.

The previous prime is 6657475753. The next prime is 6657475771. The reversal of 6657475761 is 1675747566.

6657475761 is a `hidden beast` number, since 6 + 6 + 574 + 7 + 5 + 7 + 61 = 666.

It is not a de Polignac number, because 6657475761 - 2³ = 6657475753 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6657475698 and 6657475707.

It is not an unprimeable number, because it can be changed into a prime (6657475771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1082451 + ... + 1088583.

Almost surely, 2^6657475761 is an apocalyptic number.

It is an amenable number.

6657475761 is a deficient number, since it is larger than the sum of its proper divisors (3062117135).

6657475761 is a wasteful number, since it uses less digits than its factorization.

6657475761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7413 (or 7410 counting only the distinct ones).

The product of its digits is 7408800, while the sum is 54.

The square root of 6657475761 is about 81593.3561082028. The cubic root of 6657475761 is about 1881.2067626608.

The spelling of 6657475761 in words is "six billion, six hundred fifty-seven million, four hundred seventy-five thousand, seven hundred sixty-one".