166729730967 has 16 divisors (see below), whose sum is σ = 248664780000. Its totient is φ = 110407156992.

The previous prime is 166729730957. The next prime is 166729730977. The reversal of 166729730967 is 769037927661.

It is an interprime number because it is at equal distance from previous prime (166729730957) and next prime (166729730977).

It is not a de Polignac number, because 166729730967 - 2¹⁴ = 166729714583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166729730957) 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 15 ways as a sum of consecutive naturals, for example, 20718042 + ... + 20726087.

It is an arithmetic number, because the mean of its divisors is an integer number (15541548750).

Almost surely, 2^166729730967 is an apocalyptic number.

166729730967 is a deficient number, since it is larger than the sum of its proper divisors (81935049033).

166729730967 is a wasteful number, since it uses less digits than its factorization.

166729730967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41444287 (or 41444281 counting only the distinct ones).

The product of its (nonzero) digits is 36006768, while the sum is 63.

The spelling of 166729730967 in words is "one hundred sixty-six billion, seven hundred twenty-nine million, seven hundred thirty thousand, nine hundred sixty-seven".