166197602059 has 4 divisors (see below), whose sum is σ = 170062662616. Its totient is φ = 162332541504.

The previous prime is 166197601991. The next prime is 166197602107. The reversal of 166197602059 is 950206791661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 950206791661 = 1901 ⋅499845761.

It is a cyclic number.

It is not a de Polignac number, because 166197602059 - 2¹⁷ = 166197470987 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 166197601997 and 166197602015.

It is not an unprimeable number, because it can be changed into a prime (166197602359) 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, 1932530214 + ... + 1932530299.

It is an arithmetic number, because the mean of its divisors is an integer number (42515665654).

Almost surely, 2^166197602059 is an apocalyptic number.

166197602059 is a deficient number, since it is larger than the sum of its proper divisors (3865060557).

166197602059 is an equidigital number, since it uses as much as digits as its factorization.

166197602059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3865060556.

The product of its (nonzero) digits is 1224720, while the sum is 52.

The spelling of 166197602059 in words is "one hundred sixty-six billion, one hundred ninety-seven million, six hundred two thousand, fifty-nine".