6611516100011 has 4 divisors (see below), whose sum is σ = 6611525641752. Its totient is φ = 6611506558272.

The previous prime is 6611516099999. The next prime is 6611516100037. The reversal of 6611516100011 is 1100016151166.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6611516100011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6611516100061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3642566 + ... + 5146971.

It is an arithmetic number, because the mean of its divisors is an integer number (1652881410438).

Almost surely, 2^{6611516100011} is an apocalyptic number.

6611516100011 is a deficient number, since it is larger than the sum of its proper divisors (9541741).

6611516100011 is an equidigital number, since it uses as much as digits as its factorization.

6611516100011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9541740.

The product of its (nonzero) digits is 1080, while the sum is 29.

The spelling of 6611516100011 in words is "six trillion, six hundred eleven billion, five hundred sixteen million, one hundred thousand, eleven".