166151319017 has 8 divisors (see below), whose sum is σ = 177901612200. Its totient is φ = 154620657664.

The previous prime is 166151319013. The next prime is 166151319023. The reversal of 166151319017 is 710913151661.

It can be written as a sum of positive squares in 4 ways, for example, as 53590398016 + 112560921001 = 231496^2 + 335501^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 166151319017 - 2² = 166151319013 is a prime.

It is a super-2 number, since 2×166151319017² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166151319013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54906392 + ... + 54909417.

It is an arithmetic number, because the mean of its divisors is an integer number (22237701525).

Almost surely, 2^166151319017 is an apocalyptic number.

166151319017 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

166151319017 is a deficient number, since it is larger than the sum of its proper divisors (11750293183).

166151319017 is a wasteful number, since it uses less digits than its factorization.

166151319017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109815915.

The product of its (nonzero) digits is 34020, while the sum is 41.

The spelling of 166151319017 in words is "one hundred sixty-six billion, one hundred fifty-one million, three hundred nineteen thousand, seventeen".