5661665505151 has 16 divisors (see below), whose sum is σ = 5756358960000. Its totient is φ = 5567720790016.

The previous prime is 5661665505143. The next prime is 5661665505161. The reversal of 5661665505151 is 1515055661665.

5661665505151 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 5661665505151 - 2³ = 5661665505143 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 (5661665505131) 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, 17043735 + ... + 17372743.

It is an arithmetic number, because the mean of its divisors is an integer number (359772435000).

Almost surely, 2^{5661665505151} is an apocalyptic number.

5661665505151 is a deficient number, since it is larger than the sum of its proper divisors (94693454849).

5661665505151 is a wasteful number, since it uses less digits than its factorization.

5661665505151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330146.

The product of its (nonzero) digits is 4050000, while the sum is 52.

The spelling of 5661665505151 in words is "five trillion, six hundred sixty-one billion, six hundred sixty-five million, five hundred five thousand, one hundred fifty-one".