20133381737 has 16 divisors (see below), whose sum is σ = 23763615744. Its totient is φ = 16692210000.

The previous prime is 20133381733. The next prime is 20133381743. The reversal of 20133381737 is 73718333102.

It is a cyclic number.

It is not a de Polignac number, because 20133381737 - 2² = 20133381733 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 20133381737.

It is not an unprimeable number, because it can be changed into a prime (20133381733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 436112 + ... + 480062.

It is an arithmetic number, because the mean of its divisors is an integer number (1485225984).

Almost surely, 2^20133381737 is an apocalyptic number.

It is an amenable number.

20133381737 is a deficient number, since it is larger than the sum of its proper divisors (3630234007).

20133381737 is a wasteful number, since it uses less digits than its factorization.

20133381737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46100.

The product of its (nonzero) digits is 63504, while the sum is 38.

The spelling of 20133381737 in words is "twenty billion, one hundred thirty-three million, three hundred eighty-one thousand, seven hundred thirty-seven".