5005661156109 has 6 divisors (see below), whose sum is σ = 7230399447726. Its totient is φ = 3337107437400.

The previous prime is 5005661156009. The next prime is 5005661156117. The reversal of 5005661156109 is 9016511665005.

It can be written as a sum of positive squares in only one way, i.e., 2505246343209 + 2500414812900 = 1582797^2 + 1581270^2 .

It is not a de Polignac number, because 5005661156109 - 2⁸ = 5005661155853 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5005661156129) 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, 278092286442 + ... + 278092286459.

It is an arithmetic number, because the mean of its divisors is an integer number (1205066574621).

Almost surely, 2^{5005661156109} is an apocalyptic number.

It is an amenable number.

5005661156109 is a deficient number, since it is larger than the sum of its proper divisors (2224738291617).

5005661156109 is a wasteful number, since it uses less digits than its factorization.

5005661156109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556184572907 (or 556184572904 counting only the distinct ones).

The product of its (nonzero) digits is 243000, while the sum is 45.

The spelling of 5005661156109 in words is "five trillion, five billion, six hundred sixty-one million, one hundred fifty-six thousand, one hundred nine".