6511011051105 has 48 divisors (see below), whose sum is σ = 13035949415424. Its totient is φ = 2971156554240.

The previous prime is 6511011051053. The next prime is 6511011051107. The reversal of 6511011051105 is 5011501101156.

6511011051105 is a `hidden beast` number, since 651 + 1 + 0 + 1 + 1 + 0 + 5 + 1 + 1 + 0 + 5 = 666.

It is not a de Polignac number, because 6511011051105 - 2¹⁶ = 6511010985569 is a prime.

It is a super-2 number, since 2×6511011051105² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6511011051107) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 386860929 + ... + 386877758.

It is an arithmetic number, because the mean of its divisors is an integer number (271582279488).

Almost surely, 2^{6511011051105} is an apocalyptic number.

It is an amenable number.

6511011051105 is an abundant number, since it is smaller than the sum of its proper divisors (6524938364319).

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

6511011051105 is a wasteful number, since it uses less digits than its factorization.

6511011051105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773738726 (or 773738723 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 27.

The spelling of 6511011051105 in words is "six trillion, five hundred eleven billion, eleven million, fifty-one thousand, one hundred five".