20000166836 has 48 divisors (see below), whose sum is σ = 37990877568. Its totient is φ = 9157968000.

The previous prime is 20000166793. The next prime is 20000166847. The reversal of 20000166836 is 63866100002.

It is a congruent number.

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, 10135946 + ... + 10137918.

It is an arithmetic number, because the mean of its divisors is an integer number (791476616).

Almost surely, 2^20000166836 is an apocalyptic number.

20000166836 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20000166836 is a deficient number, since it is larger than the sum of its proper divisors (17990710732).

20000166836 is a wasteful number, since it uses less digits than its factorization.

20000166836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3432 (or 3430 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

Adding to 20000166836 its reverse (63866100002), we get a palindrome (83866266838).

The spelling of 20000166836 in words is "twenty billion, one hundred sixty-six thousand, eight hundred thirty-six".