52166717187 has 32 divisors (see below), whose sum is σ = 75356531712. Its totient is φ = 31909847424.

The previous prime is 52166717179. The next prime is 52166717189. The reversal of 52166717187 is 78171766125.

It is not a de Polignac number, because 52166717187 - 2³ = 52166717179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52166717189) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10500178 + ... + 10505144.

It is an arithmetic number, because the mean of its divisors is an integer number (2354891616).

Almost surely, 2^52166717187 is an apocalyptic number.

52166717187 is a deficient number, since it is larger than the sum of its proper divisors (23189814525).

52166717187 is a wasteful number, since it uses less digits than its factorization.

52166717187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6547.

The product of its digits is 987840, while the sum is 51.

The spelling of 52166717187 in words is "fifty-two billion, one hundred sixty-six million, seven hundred seventeen thousand, one hundred eighty-seven".