99966546077 has 2 divisors, whose sum is σ = 99966546078. Its totient is φ = 99966546076.

The previous prime is 99966546049. The next prime is 99966546109. The reversal of 99966546077 is 77064566999.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67980654361 + 31985891716 = 260731^2 + 178846^2 .

It is a cyclic number.

It is not a de Polignac number, because 99966546077 - 2⁸ = 99966545821 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99966545998 and 99966546016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99966546877) 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, 49983273038 + 49983273039.

It is an arithmetic number, because the mean of its divisors is an integer number (49983273039).

Almost surely, 2^99966546077 is an apocalyptic number.

It is an amenable number.

99966546077 is a deficient number, since it is larger than the sum of its proper divisors (1).

99966546077 is an equidigital number, since it uses as much as digits as its factorization.

99966546077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 154314720, while the sum is 68.

The spelling of 99966546077 in words is "ninety-nine billion, nine hundred sixty-six million, five hundred forty-six thousand, seventy-seven".