6606555606156 has 48 divisors (see below), whose sum is σ = 16816846112640. Its totient is φ = 2001967605120.

The previous prime is 6606555606143. The next prime is 6606555606257. The reversal of 6606555606156 is 6516065556066.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 6606555606096 and 6606555606105.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20860800 + ... + 21175128.

It is an arithmetic number, because the mean of its divisors is an integer number (350350960680).

Almost surely, 2^{6606555606156} is an apocalyptic number.

6606555606156 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

6606555606156 is an abundant number, since it is smaller than the sum of its proper divisors (10210290506484).

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

6606555606156 is a wasteful number, since it uses less digits than its factorization.

6606555606156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473574 (or 473572 counting only the distinct ones).

The product of its (nonzero) digits is 29160000, while the sum is 57.

The spelling of 6606555606156 in words is "six trillion, six hundred six billion, five hundred fifty-five million, six hundred six thousand, one hundred fifty-six".