166848789547 has 8 divisors (see below), whose sum is σ = 184733531712. Its totient is φ = 149416825800.

The previous prime is 166848789539. The next prime is 166848789553. The reversal of 166848789547 is 745987848661.

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

It is not a de Polignac number, because 166848789547 - 2³ = 166848789539 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 166848789547.

It is not an unprimeable number, because it can be changed into a prime (166848789847) 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, 113193829 + ... + 113195302.

It is an arithmetic number, because the mean of its divisors is an integer number (23091691464).

Almost surely, 2^166848789547 is an apocalyptic number.

166848789547 is a deficient number, since it is larger than the sum of its proper divisors (17884742165).

166848789547 is a wasteful number, since it uses less digits than its factorization.

166848789547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226389209.

The product of its digits is 650280960, while the sum is 73.

The spelling of 166848789547 in words is "one hundred sixty-six billion, eight hundred forty-eight million, seven hundred eighty-nine thousand, five hundred forty-seven".