166065277858 has 16 divisors (see below), whose sum is σ = 268306204320. Its totient is φ = 76833138816.

The previous prime is 166065277823. The next prime is 166065277891. The reversal of 166065277858 is 858772560661.

It is a junction number, because it is equal to n+sod(n) for n = 166065277796 and 166065277805.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50813935 + ... + 50817202.

It is an arithmetic number, because the mean of its divisors is an integer number (16769137770).

Almost surely, 2^166065277858 is an apocalyptic number.

166065277858 is a deficient number, since it is larger than the sum of its proper divisors (102240926462).

166065277858 is a wasteful number, since it uses less digits than its factorization.

166065277858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101631201.

The product of its (nonzero) digits is 33868800, while the sum is 61.

The spelling of 166065277858 in words is "one hundred sixty-six billion, sixty-five million, two hundred seventy-seven thousand, eight hundred fifty-eight".