166196094619009 has 24 divisors (see below), whose sum is σ = 208269587879808. Its totient is φ = 131452935173280.

The previous prime is 166196094618989. The next prime is 166196094619141. The reversal of 166196094619009 is 900916490691661.

It is a happy number.

166196094619009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 166196094619009 - 2¹⁷ = 166196094487937 is a prime.

It is a super-2 number, since 2×166196094619009² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (166196094611009) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40580457 + ... + 44487814.

It is an arithmetic number, because the mean of its divisors is an integer number (8677899494992).

Almost surely, 2^{166196094619009} is an apocalyptic number.

It is an amenable number.

166196094619009 is a deficient number, since it is larger than the sum of its proper divisors (42073493260799).

166196094619009 is a wasteful number, since it uses less digits than its factorization.

166196094619009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85071365 (or 85071358 counting only the distinct ones).

The product of its (nonzero) digits is 34012224, while the sum is 67.

The spelling of 166196094619009 in words is "one hundred sixty-six trillion, one hundred ninety-six billion, ninety-four million, six hundred nineteen thousand, nine".