6656101505611 has 24 divisors (see below), whose sum is σ = 7137126740880. Its totient is φ = 6205744914432.

The previous prime is 6656101505609. The next prime is 6656101505623. The reversal of 6656101505611 is 1165051016566.

It is not a de Polignac number, because 6656101505611 - 2¹ = 6656101505609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6656101505671) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60916035 + ... + 61025203.

It is an arithmetic number, because the mean of its divisors is an integer number (297380280870).

Almost surely, 2^{6656101505611} is an apocalyptic number.

6656101505611 is a deficient number, since it is larger than the sum of its proper divisors (481025235269).

6656101505611 is a wasteful number, since it uses less digits than its factorization.

6656101505611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111183 (or 111166 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 43.

The spelling of 6656101505611 in words is "six trillion, six hundred fifty-six billion, one hundred one million, five hundred five thousand, six hundred eleven".