166176097093 has 4 divisors (see below), whose sum is σ = 168900295468. Its totient is φ = 163451898720.

The previous prime is 166176097069. The next prime is 166176097103. The reversal of 166176097093 is 390790671661.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1962312804 + 164213784289 = 44298^2 + 405233^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166176097093 is a prime.

It is a super-2 number, since 2×166176097093² (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 (166176097063) 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 3 ways as a sum of consecutive naturals, for example, 1362099096 + ... + 1362099217.

It is an arithmetic number, because the mean of its divisors is an integer number (42225073867).

Almost surely, 2^166176097093 is an apocalyptic number.

It is an amenable number.

166176097093 is a deficient number, since it is larger than the sum of its proper divisors (2724198375).

166176097093 is an equidigital number, since it uses as much as digits as its factorization.

166176097093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2724198374.

The product of its (nonzero) digits is 2571912, while the sum is 55.

The spelling of 166176097093 in words is "one hundred sixty-six billion, one hundred seventy-six million, ninety-seven thousand, ninety-three".