15852156206149 has 2 divisors, whose sum is σ = 15852156206150. Its totient is φ = 15852156206148.

The previous prime is 15852156206137. The next prime is 15852156206221. The reversal of 15852156206149 is 94160265125851.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12487565750625 + 3364590455524 = 3533775^2 + 1834282^2 .

It is a cyclic number.

It is not a de Polignac number, because 15852156206149 - 2¹⁹ = 15852155681861 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15852156206149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15852156206449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7926078103074 + 7926078103075.

It is an arithmetic number, because the mean of its divisors is an integer number (7926078103075).

Almost surely, 2^{15852156206149} is an apocalyptic number.

It is an amenable number.

15852156206149 is a deficient number, since it is larger than the sum of its proper divisors (1).

15852156206149 is an equidigital number, since it uses as much as digits as its factorization.

15852156206149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184000, while the sum is 55.

The spelling of 15852156206149 in words is "fifteen trillion, eight hundred fifty-two billion, one hundred fifty-six million, two hundred six thousand, one hundred forty-nine".