15878955061 has 2 divisors, whose sum is σ = 15878955062. Its totient is φ = 15878955060.

The previous prime is 15878955031. The next prime is 15878955091. The reversal of 15878955061 is 16055987851.

15878955061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (15878955031) and next prime (15878955091).

It can be written as a sum of positive squares in only one way, i.e., 14537124900 + 1341830161 = 120570^2 + 36631^2 .

It is a cyclic number.

It is not a de Polignac number, because 15878955061 - 2¹⁹ = 15878430773 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15878954993 and 15878955011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15878955031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7939477530 + 7939477531.

It is an arithmetic number, because the mean of its divisors is an integer number (7939477531).

Almost surely, 2^15878955061 is an apocalyptic number.

It is an amenable number.

15878955061 is a deficient number, since it is larger than the sum of its proper divisors (1).

15878955061 is an equidigital number, since it uses as much as digits as its factorization.

15878955061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024000, while the sum is 55.

The spelling of 15878955061 in words is "fifteen billion, eight hundred seventy-eight million, nine hundred fifty-five thousand, sixty-one".