99361557541 has 2 divisors, whose sum is σ = 99361557542. Its totient is φ = 99361557540.

The previous prime is 99361557481. The next prime is 99361557553. The reversal of 99361557541 is 14575516399.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75567261025 + 23794296516 = 274895^2 + 154254^2 .

It is a cyclic number.

It is not a de Polignac number, because 99361557541 - 2⁷ = 99361557413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99361557341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49680778770 + 49680778771.

It is an arithmetic number, because the mean of its divisors is an integer number (49680778771).

Almost surely, 2^99361557541 is an apocalyptic number.

It is an amenable number.

99361557541 is a deficient number, since it is larger than the sum of its proper divisors (1).

99361557541 is an equidigital number, since it uses as much as digits as its factorization.

99361557541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5103000, while the sum is 55.

The spelling of 99361557541 in words is "ninety-nine billion, three hundred sixty-one million, five hundred fifty-seven thousand, five hundred forty-one".