166908562197 has 32 divisors (see below), whose sum is σ = 241657651200. Its totient is φ = 101860016832.

The previous prime is 166908562153. The next prime is 166908562229. The reversal of 166908562197 is 791265809661.

It is not a de Polignac number, because 166908562197 - 2⁶ = 166908562133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 166908562197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166908562397) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4965148 + ... + 4998650.

It is an arithmetic number, because the mean of its divisors is an integer number (7551801600).

Almost surely, 2^166908562197 is an apocalyptic number.

It is an amenable number.

166908562197 is a deficient number, since it is larger than the sum of its proper divisors (74749089003).

166908562197 is a wasteful number, since it uses less digits than its factorization.

166908562197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34577.

The product of its (nonzero) digits is 9797760, while the sum is 60.

The spelling of 166908562197 in words is "one hundred sixty-six billion, nine hundred eight million, five hundred sixty-two thousand, one hundred ninety-seven".