20168500033 has 16 divisors (see below), whose sum is σ = 22084094592. Its totient is φ = 18266688000.

The previous prime is 20168500007. The next prime is 20168500039. The reversal of 20168500033 is 33000586102.

It is not a de Polignac number, because 20168500033 - 2⁹ = 20168499521 is a prime.

It is a super-2 number, since 2×20168500033² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20168499974 and 20168500010.

It is not an unprimeable number, because it can be changed into a prime (20168500039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7224868 + ... + 7227658.

It is an arithmetic number, because the mean of its divisors is an integer number (1380255912).

Almost surely, 2^20168500033 is an apocalyptic number.

It is an amenable number.

20168500033 is a deficient number, since it is larger than the sum of its proper divisors (1915594559).

20168500033 is a wasteful number, since it uses less digits than its factorization.

20168500033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5016.

The product of its (nonzero) digits is 4320, while the sum is 28.

The spelling of 20168500033 in words is "twenty billion, one hundred sixty-eight million, five hundred thousand, thirty-three".