51566117067 has 6 divisors (see below), whose sum is σ = 74484391332. Its totient is φ = 34377411372.

The previous prime is 51566117027. The next prime is 51566117081. The reversal of 51566117067 is 76071166515.

51566117067 is a `hidden beast` number, since 5 + 1 + 566 + 11 + 70 + 6 + 7 = 666.

It is not a de Polignac number, because 51566117067 - 2⁷ = 51566116939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51566117027) 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, 2864784273 + ... + 2864784290.

It is an arithmetic number, because the mean of its divisors is an integer number (12414065222).

Almost surely, 2^51566117067 is an apocalyptic number.

51566117067 is a deficient number, since it is larger than the sum of its proper divisors (22918274265).

51566117067 is a wasteful number, since it uses less digits than its factorization.

51566117067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5729568569 (or 5729568566 counting only the distinct ones).

The product of its (nonzero) digits is 264600, while the sum is 45.

The spelling of 51566117067 in words is "fifty-one billion, five hundred sixty-six million, one hundred seventeen thousand, sixty-seven".