6657636279366 has 56 divisors (see below), whose sum is σ = 15162361992480. Its totient is φ = 2191120762896.

The previous prime is 6657636279323. The next prime is 6657636279391. The reversal of 6657636279366 is 6639726367566.

It is a junction number, because it is equal to n+sod(n) for n = 6657636279294 and 6657636279303.

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 27 ways as a sum of consecutive naturals, for example, 28785325 + ... + 29015688.

Almost surely, 2^{6657636279366} is an apocalyptic number.

6657636279366 is an abundant number, since it is smaller than the sum of its proper divisors (8504725713114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6657636279366 is an equidigital number, since it uses as much as digits as its factorization.

6657636279366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57801112 (or 57801097 counting only the distinct ones).

The product of its digits is 1851776640, while the sum is 72.

The spelling of 6657636279366 in words is "six trillion, six hundred fifty-seven billion, six hundred thirty-six million, two hundred seventy-nine thousand, three hundred sixty-six".