166304902443 has 8 divisors (see below), whose sum is σ = 221760022848. Its totient is φ = 110859858504.

The previous prime is 166304902427. The next prime is 166304902447. The reversal of 166304902443 is 344209403661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 166304902443 - 2⁴ = 166304902427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 166304902395 and 166304902404.

It is not an unprimeable number, because it can be changed into a prime (166304902447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2480521 + ... + 2546682.

It is an arithmetic number, because the mean of its divisors is an integer number (27720002856).

Almost surely, 2^166304902443 is an apocalyptic number.

166304902443 is a deficient number, since it is larger than the sum of its proper divisors (55455120405).

166304902443 is a wasteful number, since it uses less digits than its factorization.

166304902443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5038233.

The product of its (nonzero) digits is 373248, while the sum is 42.

The spelling of 166304902443 in words is "one hundred sixty-six billion, three hundred four million, nine hundred two thousand, four hundred forty-three".