20066358547 has 2 divisors, whose sum is σ = 20066358548. Its totient is φ = 20066358546.

The previous prime is 20066358467. The next prime is 20066358551. The reversal of 20066358547 is 74585366002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20066358547 - 2¹⁹ = 20065834259 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20066358497 and 20066358506.

It is not a weakly prime, because it can be changed into another prime (20066353547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10033179273 + 10033179274.

It is an arithmetic number, because the mean of its divisors is an integer number (10033179274).

Almost surely, 2^20066358547 is an apocalyptic number.

20066358547 is a deficient number, since it is larger than the sum of its proper divisors (1).

20066358547 is an equidigital number, since it uses as much as digits as its factorization.

20066358547 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1209600, while the sum is 46.

The spelling of 20066358547 in words is "twenty billion, sixty-six million, three hundred fifty-eight thousand, five hundred forty-seven".