20033320157 has 2 divisors, whose sum is σ = 20033320158. Its totient is φ = 20033320156.

The previous prime is 20033320127. The next prime is 20033320171. The reversal of 20033320157 is 75102333002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10095024676 + 9938295481 = 100474^2 + 99691^2 .

It is a cyclic number.

It is not a de Polignac number, because 20033320157 - 2²⁴ = 20016542941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20033320127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10016660078 + 10016660079.

It is an arithmetic number, because the mean of its divisors is an integer number (10016660079).

Almost surely, 2^20033320157 is an apocalyptic number.

It is an amenable number.

20033320157 is a deficient number, since it is larger than the sum of its proper divisors (1).

20033320157 is an equidigital number, since it uses as much as digits as its factorization.

20033320157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 26.

Adding to 20033320157 its reverse (75102333002), we get a palindrome (95135653159).

The spelling of 20033320157 in words is "twenty billion, thirty-three million, three hundred twenty thousand, one hundred fifty-seven".