5661610665567 has 8 divisors (see below), whose sum is σ = 7550531048496. Its totient is φ = 3773548696512.

The previous prime is 5661610665563. The next prime is 5661610665593. The reversal of 5661610665567 is 7655660161665.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5661610665567 - 2² = 5661610665563 is a prime.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 5661610665567.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5661610665563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214588078 + ... + 214614459.

It is an arithmetic number, because the mean of its divisors is an integer number (943816381062).

Almost surely, 2^{5661610665567} is an apocalyptic number.

5661610665567 is a deficient number, since it is larger than the sum of its proper divisors (1888920382929).

5661610665567 is a wasteful number, since it uses less digits than its factorization.

5661610665567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429206937.

The product of its (nonzero) digits is 40824000, while the sum is 60.

The spelling of 5661610665567 in words is "five trillion, six hundred sixty-one billion, six hundred ten million, six hundred sixty-five thousand, five hundred sixty-seven".