20083557187 has 2 divisors, whose sum is σ = 20083557188. Its totient is φ = 20083557186.

The previous prime is 20083557149. The next prime is 20083557203. The reversal of 20083557187 is 78175538002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20083557187 - 2³¹ = 17936073539 is a prime.

It is not a weakly prime, because it can be changed into another prime (20083557127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10041778593 + 10041778594.

It is an arithmetic number, because the mean of its divisors is an integer number (10041778594).

Almost surely, 2^20083557187 is an apocalyptic number.

20083557187 is a deficient number, since it is larger than the sum of its proper divisors (1).

20083557187 is an equidigital number, since it uses as much as digits as its factorization.

20083557187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 470400, while the sum is 46.

The spelling of 20083557187 in words is "twenty billion, eighty-three million, five hundred fifty-seven thousand, one hundred eighty-seven".