166016137 has 4 divisors (see below), whose sum is σ = 189732736. Its totient is φ = 142299540.

The previous prime is 166016117. The next prime is 166016143. The reversal of 166016137 is 731610661.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 166016137 - 2⁷ = 166016009 is a prime.

It is a super-2 number, since 2×166016137² = 55122715488805538, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 166016099 and 166016108.

It is not an unprimeable number, because it can be changed into a prime (166016107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11858289 + ... + 11858302.

It is an arithmetic number, because the mean of its divisors is an integer number (47433184).

Almost surely, 2^166016137 is an apocalyptic number.

It is an amenable number.

166016137 is a deficient number, since it is larger than the sum of its proper divisors (23716599).

166016137 is an equidigital number, since it uses as much as digits as its factorization.

166016137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23716598.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 166016137 is about 12884.7249485583. The cubic root of 166016137 is about 549.6042740204.

Adding to 166016137 its reverse (731610661), we get a palindrome (897626798).

The spelling of 166016137 in words is "one hundred sixty-six million, sixteen thousand, one hundred thirty-seven".