20083557149 has 2 divisors, whose sum is σ = 20083557150. Its totient is φ = 20083557148.

The previous prime is 20083557127. The next prime is 20083557187. The reversal of 20083557149 is 94175538002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11456491225 + 8627065924 = 107035^2 + 92882^2 .

It is a cyclic number.

It is not a de Polignac number, because 20083557149 - 2⁸ = 20083556893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20083557349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10041778574 + 10041778575.

It is an arithmetic number, because the mean of its divisors is an integer number (10041778575).

Almost surely, 2^20083557149 is an apocalyptic number.

It is an amenable number.

20083557149 is a deficient number, since it is larger than the sum of its proper divisors (1).

20083557149 is an equidigital number, since it uses as much as digits as its factorization.

20083557149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 302400, while the sum is 44.

The spelling of 20083557149 in words is "twenty billion, eighty-three million, five hundred fifty-seven thousand, one hundred forty-nine".