6611943600001 has 6 divisors (see below), whose sum is σ = 6978256265202. Its totient is φ = 6263946568080.

The previous prime is 6611943599983. The next prime is 6611943600029. The reversal of 6611943600001 is 1000063491166.

It can be written as a sum of positive squares in only one way, i.e., 4303218336400 + 2308725263601 = 2074420^2 + 1519449^2 .

It is not a de Polignac number, because 6611943600001 - 2²⁵ = 6611910045569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6611943600071) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9157816260 + ... + 9157816981.

It is an arithmetic number, because the mean of its divisors is an integer number (1163042710867).

Almost surely, 2^{6611943600001} is an apocalyptic number.

It is an amenable number.

6611943600001 is a deficient number, since it is larger than the sum of its proper divisors (366312665201).

6611943600001 is a wasteful number, since it uses less digits than its factorization.

6611943600001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18315633279 (or 18315633260 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The spelling of 6611943600001 in words is "six trillion, six hundred eleven billion, nine hundred forty-three million, six hundred thousand, one".