20058664961 has 2 divisors, whose sum is σ = 20058664962. Its totient is φ = 20058664960.

The previous prime is 20058664921. The next prime is 20058665023. The reversal of 20058664961 is 16946685002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20034703936 + 23961025 = 141544^2 + 4895^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20058664961 is a prime.

It is not a weakly prime, because it can be changed into another prime (20058664921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10029332480 + 10029332481.

It is an arithmetic number, because the mean of its divisors is an integer number (10029332481).

Almost surely, 2^20058664961 is an apocalyptic number.

It is an amenable number.

20058664961 is a deficient number, since it is larger than the sum of its proper divisors (1).

20058664961 is an equidigital number, since it uses as much as digits as its factorization.

20058664961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 622080, while the sum is 47.

The spelling of 20058664961 in words is "twenty billion, fifty-eight million, six hundred sixty-four thousand, nine hundred sixty-one".