6665655556160 has 112 divisors (see below), whose sum is σ = 16712454662400. Its totient is φ = 2525257949184.

The previous prime is 6665655556159. The next prime is 6665655556193. The reversal of 6665655556160 is 616555565666.

It is a junction number, because it is equal to n+sod(n) for n = 6665655556093 and 6665655556102.

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, 22916921 + ... + 23205959.

It is an arithmetic number, because the mean of its divisors is an integer number (149218345200).

Almost surely, 2^{6665655556160} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6665655556160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8356227331200).

6665655556160 is an abundant number, since it is smaller than the sum of its proper divisors (10046799106240).

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

6665655556160 is a wasteful number, since it uses less digits than its factorization.

6665655556160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292868 (or 292858 counting only the distinct ones).

The product of its (nonzero) digits is 145800000, while the sum is 62.

The spelling of 6665655556160 in words is "six trillion, six hundred sixty-five billion, six hundred fifty-five million, five hundred fifty-six thousand, one hundred sixty".