166742286069 has 8 divisors (see below), whose sum is σ = 227493351712. Its totient is φ = 108576372240.

The previous prime is 166742286043. The next prime is 166742286077. The reversal of 166742286069 is 960682247661.

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

It is not a de Polignac number, because 166742286069 - 2⁵ = 166742286037 is a prime.

It is a super-2 number, since 2×166742286069² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166742287069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 646287802 + ... + 646288059.

It is an arithmetic number, because the mean of its divisors is an integer number (28436668964).

Almost surely, 2^166742286069 is an apocalyptic number.

It is an amenable number.

166742286069 is a deficient number, since it is larger than the sum of its proper divisors (60751065643).

166742286069 is a wasteful number, since it uses less digits than its factorization.

166742286069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1292575907.

The product of its (nonzero) digits is 10450944, while the sum is 57.

The spelling of 166742286069 in words is "one hundred sixty-six billion, seven hundred forty-two million, two hundred eighty-six thousand, sixty-nine".