99660100917473 has 2 divisors, whose sum is σ = 99660100917474. Its totient is φ = 99660100917472.

The previous prime is 99660100917457. The next prime is 99660100917497. The reversal of 99660100917473 is 37471900106699.

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., 99660049408144 + 51509329 = 9982988^2 + 7177^2 .

It is a cyclic number.

It is not a de Polignac number, because 99660100917473 - 2⁴ = 99660100917457 is a prime.

It is not a weakly prime, because it can be changed into another prime (99660100917173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49830050458736 + 49830050458737.

It is an arithmetic number, because the mean of its divisors is an integer number (49830050458737).

Almost surely, 2^{99660100917473} is an apocalyptic number.

It is an amenable number.

99660100917473 is a deficient number, since it is larger than the sum of its proper divisors (1).

99660100917473 is an equidigital number, since it uses as much as digits as its factorization.

99660100917473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15431472, while the sum is 62.

The spelling of 99660100917473 in words is "ninety-nine trillion, six hundred sixty billion, one hundred million, nine hundred seventeen thousand, four hundred seventy-three".