166144363 has 16 divisors (see below), whose sum is σ = 207498240. Its totient is φ = 129240000.

The previous prime is 166144343. The next prime is 166144369. The reversal of 166144363 is 363441661.

It is a cyclic number.

It is not a de Polignac number, because 166144363 - 2¹⁷ = 166013291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166144369) 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, 53863 + ... + 56863.

It is an arithmetic number, because the mean of its divisors is an integer number (12968640).

Almost surely, 2^166144363 is an apocalyptic number.

166144363 is a deficient number, since it is larger than the sum of its proper divisors (41353877).

166144363 is a wasteful number, since it uses less digits than its factorization.

166144363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3738.

The product of its digits is 31104, while the sum is 34.

The square root of 166144363 is about 12889.6998801369. The cubic root of 166144363 is about 549.7457370187.

The spelling of 166144363 in words is "one hundred sixty-six million, one hundred forty-four thousand, three hundred sixty-three".