166832121 has 16 divisors (see below), whose sum is σ = 226016000. Its totient is φ = 109444608.

The previous prime is 166832069. The next prime is 166832123. The reversal of 166832121 is 121238661.

It is not a de Polignac number, because 166832121 - 2¹³ = 166823929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166832123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81705 + ... + 83721.

It is an arithmetic number, because the mean of its divisors is an integer number (14126000).

Almost surely, 2^166832121 is an apocalyptic number.

It is an amenable number.

166832121 is a deficient number, since it is larger than the sum of its proper divisors (59183879).

166832121 is a wasteful number, since it uses less digits than its factorization.

166832121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2448.

The product of its digits is 3456, while the sum is 30.

The square root of 166832121 is about 12916.3509165708. The cubic root of 166832121 is about 550.5032539791.

The spelling of 166832121 in words is "one hundred sixty-six million, eight hundred thirty-two thousand, one hundred twenty-one".