115515423325541 has 2 divisors, whose sum is σ = 115515423325542. Its totient is φ = 115515423325540.

The previous prime is 115515423325487. The next prime is 115515423325553. The reversal of 115515423325541 is 145523324515511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115495752141025 + 19671184516 = 10746895^2 + 140254^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115515423325541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115515423325571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57757711662770 + 57757711662771.

It is an arithmetic number, because the mean of its divisors is an integer number (57757711662771).

Almost surely, 2^{115515423325541} is an apocalyptic number.

It is an amenable number.

115515423325541 is a deficient number, since it is larger than the sum of its proper divisors (1).

115515423325541 is an equidigital number, since it uses as much as digits as its factorization.

115515423325541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1800000, while the sum is 47.

The spelling of 115515423325541 in words is "one hundred fifteen trillion, five hundred fifteen billion, four hundred twenty-three million, three hundred twenty-five thousand, five hundred forty-one".