15499800197941 has 2 divisors, whose sum is σ = 15499800197942. Its totient is φ = 15499800197940.

The previous prime is 15499800197939. The next prime is 15499800198037. The reversal of 15499800197941 is 14979100899451.

15499800197941 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10344875159025 + 5154925038916 = 3216345^2 + 2270446^2 .

It is a cyclic number.

It is not a de Polignac number, because 15499800197941 - 2¹ = 15499800197939 is a prime.

Together with 15499800197939, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15499800197641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7749900098970 + 7749900098971.

It is an arithmetic number, because the mean of its divisors is an integer number (7749900098971).

Almost surely, 2^{15499800197941} is an apocalyptic number.

It is an amenable number.

15499800197941 is a deficient number, since it is larger than the sum of its proper divisors (1).

15499800197941 is an equidigital number, since it uses as much as digits as its factorization.

15499800197941 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29393280, while the sum is 67.

The spelling of 15499800197941 in words is "fifteen trillion, four hundred ninety-nine billion, eight hundred million, one hundred ninety-seven thousand, nine hundred forty-one".