51566106567 has 8 divisors (see below), whose sum is σ = 68756362624. Its totient is φ = 34376627448.

The previous prime is 51566106539. The next prime is 51566106569. The reversal of 51566106567 is 76560166515.

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

It is not a de Polignac number, because 51566106567 - 2¹⁵ = 51566073799 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 (51566106569) 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, 16003 + ... + 321540.

It is an arithmetic number, because the mean of its divisors is an integer number (8594545328).

Almost surely, 2^51566106567 is an apocalyptic number.

51566106567 is a deficient number, since it is larger than the sum of its proper divisors (17190256057).

51566106567 is a wasteful number, since it uses less digits than its factorization.

51566106567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388469.

The product of its (nonzero) digits is 1134000, while the sum is 48.

The spelling of 51566106567 in words is "fifty-one billion, five hundred sixty-six million, one hundred six thousand, five hundred sixty-seven".