5511765965173 has 6 divisors (see below), whose sum is σ = 5935757078454. Its totient is φ = 5087776154184.

The previous prime is 5511765965119. The next prime is 5511765965191. The reversal of 5511765965173 is 3715695671155.

It can be written as a sum of positive squares in only one way, i.e., 3815837975889 + 1695927989284 = 1953417^2 + 1302278^2 .

It is a de Polignac number, because none of the positive numbers 2^k-5511765965173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5511765965873) 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, 8139238 + ... + 8790376.

It is an arithmetic number, because the mean of its divisors is an integer number (989292846409).

Almost surely, 2^{5511765965173} is an apocalyptic number.

It is an amenable number.

5511765965173 is a deficient number, since it is larger than the sum of its proper divisors (423991113281).

5511765965173 is an frugal number, since it uses more digits than its factorization.

5511765965173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1302291 (or 651152 counting only the distinct ones).

The product of its digits is 29767500, while the sum is 61.

The spelling of 5511765965173 in words is "five trillion, five hundred eleven billion, seven hundred sixty-five million, nine hundred sixty-five thousand, one hundred seventy-three".