99994140601 has 2 divisors, whose sum is σ = 99994140602. Its totient is φ = 99994140600.

The previous prime is 99994140599. The next prime is 99994140667. The reversal of 99994140601 is 10604149999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85237722025 + 14756418576 = 291955^2 + 121476^2 .

It is an emirp because it is prime and its reverse (10604149999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99994140601 - 2¹ = 99994140599 is a prime.

Together with 99994140599, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (99994146601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49997070300 + 49997070301.

It is an arithmetic number, because the mean of its divisors is an integer number (49997070301).

Almost surely, 2^99994140601 is an apocalyptic number.

It is an amenable number.

99994140601 is a deficient number, since it is larger than the sum of its proper divisors (1).

99994140601 is an equidigital number, since it uses as much as digits as its factorization.

99994140601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 629856, while the sum is 52.

The spelling of 99994140601 in words is "ninety-nine billion, nine hundred ninety-four million, one hundred forty thousand, six hundred one".