6661560661060 has 96 divisors (see below), whose sum is σ = 14615648087040. Its totient is φ = 2545606115712.

The previous prime is 6661560661043. The next prime is 6661560661061. The reversal of 6661560661060 is 601660651666.

It is a junction number, because it is equal to n+sod(n) for n = 6661560660995 and 6661560661013.

It is not an unprimeable number, because it can be changed into a prime (6661560661061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2248247139 + ... + 2248250101.

It is an arithmetic number, because the mean of its divisors is an integer number (152246334240).

Almost surely, 2^{6661560661060} is an apocalyptic number.

It is an amenable number.

6661560661060 is an abundant number, since it is smaller than the sum of its proper divisors (7954087425980).

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

6661560661060 is a wasteful number, since it uses less digits than its factorization.

6661560661060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7417 (or 7415 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 49.

The spelling of 6661560661060 in words is "six trillion, six hundred sixty-one billion, five hundred sixty million, six hundred sixty-one thousand, sixty".