446164991977 has 2 divisors, whose sum is σ = 446164991978. Its totient is φ = 446164991976.

The previous prime is 446164991939. The next prime is 446164992001. The reversal of 446164991977 is 779199461644.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 278737537936 + 167427454041 = 527956^2 + 409179^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-446164991977 is a prime.

It is not a weakly prime, because it can be changed into another prime (446164991777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223082495988 + 223082495989.

It is an arithmetic number, because the mean of its divisors is an integer number (223082495989).

Almost surely, 2^446164991977 is an apocalyptic number.

It is an amenable number.

446164991977 is a deficient number, since it is larger than the sum of its proper divisors (1).

446164991977 is an equidigital number, since it uses as much as digits as its factorization.

446164991977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82301184, while the sum is 67.

The spelling of 446164991977 in words is "four hundred forty-six billion, one hundred sixty-four million, nine hundred ninety-one thousand, nine hundred seventy-seven".