5511111165061 has 16 divisors (see below), whose sum is σ = 5687423320320. Its totient is φ = 5337374141440.

The previous prime is 5511111164981. The next prime is 5511111165067. The reversal of 5511111165061 is 1605611111155.

It is a cyclic number.

It is not a de Polignac number, because 5511111165061 - 2¹³ = 5511111156869 is a prime.

It is a super-3 number, since 3×5511111165061³ (a number of 39 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5511111165067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3808605 + ... + 5052493.

It is an arithmetic number, because the mean of its divisors is an integer number (355463957520).

Almost surely, 2^{5511111165061} is an apocalyptic number.

It is an amenable number.

5511111165061 is a deficient number, since it is larger than the sum of its proper divisors (176312155259).

5511111165061 is a wasteful number, since it uses less digits than its factorization.

5511111165061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1244924.

The product of its (nonzero) digits is 4500, while the sum is 34.

The spelling of 5511111165061 in words is "five trillion, five hundred eleven billion, one hundred eleven million, one hundred sixty-five thousand, sixty-one".