6615616156011 has 40 divisors (see below), whose sum is σ = 9895182382800. Its totient is φ = 4404791869632.

The previous prime is 6615616155971. The next prime is 6615616156031. The reversal of 6615616156011 is 1106516165166.

6615616156011 is a `hidden beast` number, since 6 + 6 + 1 + 5 + 616 + 15 + 6 + 0 + 11 = 666.

6615616156011 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6615616156011 - 2¹⁵ = 6615616123243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6615616156031) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 604215565 + ... + 604226513.

It is an arithmetic number, because the mean of its divisors is an integer number (247379559570).

Almost surely, 2^{6615616156011} is an apocalyptic number.

6615616156011 is a deficient number, since it is larger than the sum of its proper divisors (3279566226789).

6615616156011 is a wasteful number, since it uses less digits than its factorization.

6615616156011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19785 (or 19776 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 45.

The spelling of 6615616156011 in words is "six trillion, six hundred fifteen billion, six hundred sixteen million, one hundred fifty-six thousand, eleven".