20577092441 has 2 divisors, whose sum is σ = 20577092442. Its totient is φ = 20577092440.

The previous prime is 20577092377. The next prime is 20577092443. The reversal of 20577092441 is 14429077502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18651638041 + 1925454400 = 136571^2 + 43880^2 .

It is a cyclic number.

It is not a de Polignac number, because 20577092441 - 2⁶ = 20577092377 is a prime.

Together with 20577092443, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20577092443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10288546220 + 10288546221.

It is an arithmetic number, because the mean of its divisors is an integer number (10288546221).

Almost surely, 2^20577092441 is an apocalyptic number.

It is an amenable number.

20577092441 is a deficient number, since it is larger than the sum of its proper divisors (1).

20577092441 is an equidigital number, since it uses as much as digits as its factorization.

20577092441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141120, while the sum is 41.

The spelling of 20577092441 in words is "twenty billion, five hundred seventy-seven million, ninety-two thousand, four hundred forty-one".