65166412167 has 20 divisors (see below), whose sum is σ = 99721687296. Its totient is φ = 42384656160.

The previous prime is 65166412153. The next prime is 65166412219. The reversal of 65166412167 is 76121466156.

65166412167 is a `hidden beast` number, since 6 + 516 + 6 + 4 + 121 + 6 + 7 = 666.

It is not a de Polignac number, because 65166412167 - 2¹⁰ = 65166411143 is a prime.

It is a super-2 number, since 2×65166412167² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65166412117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9807943 + ... + 9814584.

Almost surely, 2^65166412167 is an apocalyptic number.

65166412167 is a deficient number, since it is larger than the sum of its proper divisors (34555275129).

65166412167 is a wasteful number, since it uses less digits than its factorization.

65166412167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19622580 (or 19622571 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The spelling of 65166412167 in words is "sixty-five billion, one hundred sixty-six million, four hundred twelve thousand, one hundred sixty-seven".