20366074577 has 2 divisors, whose sum is σ = 20366074578. Its totient is φ = 20366074576.

The previous prime is 20366074571. The next prime is 20366074693. The reversal of 20366074577 is 77547066302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17198748736 + 3167325841 = 131144^2 + 56279^2 .

It is a cyclic number.

It is not a de Polignac number, because 20366074577 - 2⁶ = 20366074513 is a prime.

It is not a weakly prime, because it can be changed into another prime (20366074571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10183037288 + 10183037289.

It is an arithmetic number, because the mean of its divisors is an integer number (10183037289).

Almost surely, 2^20366074577 is an apocalyptic number.

It is an amenable number.

20366074577 is a deficient number, since it is larger than the sum of its proper divisors (1).

20366074577 is an equidigital number, since it uses as much as digits as its factorization.

20366074577 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1481760, while the sum is 47.

The spelling of 20366074577 in words is "twenty billion, three hundred sixty-six million, seventy-four thousand, five hundred seventy-seven".