20000166834 has 32 divisors (see below), whose sum is σ = 42370188480. Its totient is φ = 6272059392.

The previous prime is 20000166793. The next prime is 20000166847. The reversal of 20000166834 is 43866100002.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226677 + ... + 302295.

It is an arithmetic number, because the mean of its divisors is an integer number (1324068390).

Almost surely, 2^20000166834 is an apocalyptic number.

20000166834 is an abundant number, since it is smaller than the sum of its proper divisors (22370021646).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20000166834 is a wasteful number, since it uses less digits than its factorization.

20000166834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78234.

The product of its (nonzero) digits is 6912, while the sum is 30.

Adding to 20000166834 its reverse (43866100002), we get a palindrome (63866266836).

The spelling of 20000166834 in words is "twenty billion, one hundred sixty-six thousand, eight hundred thirty-four".