999015550110349 has 2 divisors, whose sum is σ = 999015550110350. Its totient is φ = 999015550110348.

The previous prime is 999015550110313. The next prime is 999015550110353. The reversal of 999015550110349 is 943011055510999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 698255151532324 + 300760398578025 = 26424518^2 + 17342445^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-999015550110349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999015650110349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499507775055174 + 499507775055175.

It is an arithmetic number, because the mean of its divisors is an integer number (499507775055175).

Almost surely, 2^{999015550110349} is an apocalyptic number.

It is an amenable number.

999015550110349 is a deficient number, since it is larger than the sum of its proper divisors (1).

999015550110349 is an equidigital number, since it uses as much as digits as its factorization.

999015550110349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9841500, while the sum is 61.

The spelling of 999015550110349 in words is "nine hundred ninety-nine trillion, fifteen billion, five hundred fifty million, one hundred ten thousand, three hundred forty-nine".