166443063883 has 16 divisors (see below), whose sum is σ = 183332454400. Its totient is φ = 150505957440.

The previous prime is 166443063859. The next prime is 166443063893. The reversal of 166443063883 is 388360344661.

It is a cyclic number.

It is not a de Polignac number, because 166443063883 - 2¹⁷ = 166442932811 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 166443063883.

It is not an unprimeable number, because it can be changed into a prime (166443063893) 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, 1892523 + ... + 1978516.

It is an arithmetic number, because the mean of its divisors is an integer number (11458278400).

Almost surely, 2^166443063883 is an apocalyptic number.

166443063883 is a deficient number, since it is larger than the sum of its proper divisors (16889390517).

166443063883 is a wasteful number, since it uses less digits than its factorization.

166443063883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3871162.

The product of its (nonzero) digits is 5971968, while the sum is 52.

The spelling of 166443063883 in words is "one hundred sixty-six billion, four hundred forty-three million, sixty-three thousand, eight hundred eighty-three".