66759501167 has 4 divisors (see below), whose sum is σ = 66882901896. Its totient is φ = 66636100440.

The previous prime is 66759501119. The next prime is 66759501169. The reversal of 66759501167 is 76110595766.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 66759501167 - 2⁶ = 66759501103 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 (66759501169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61699553 + ... + 61700634.

It is an arithmetic number, because the mean of its divisors is an integer number (16720725474).

Almost surely, 2^66759501167 is an apocalyptic number.

66759501167 is a deficient number, since it is larger than the sum of its proper divisors (123400729).

66759501167 is a wasteful number, since it uses less digits than its factorization.

66759501167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123400728.

The product of its (nonzero) digits is 2381400, while the sum is 53.

The spelling of 66759501167 in words is "sixty-six billion, seven hundred fifty-nine million, five hundred one thousand, one hundred sixty-seven".