6656532356566 has 8 divisors (see below), whose sum is σ = 9985432095144. Its totient is φ = 3328054991520.

The previous prime is 6656532356543. The next prime is 6656532356597.

It is a happy number.

6656532356566 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 6656532356498 and 6656532356507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105553980 + ... + 105617023.

It is an arithmetic number, because the mean of its divisors is an integer number (1248179011893).

Almost surely, 2^{6656532356566} is an apocalyptic number.

6656532356566 is a deficient number, since it is larger than the sum of its proper divisors (3328899738578).

6656532356566 is a wasteful number, since it uses less digits than its factorization.

6656532356566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211186766.

The product of its digits is 524880000, while the sum is 64.

The spelling of 6656532356566 in words is "six trillion, six hundred fifty-six billion, five hundred thirty-two million, three hundred fifty-six thousand, five hundred sixty-six".