15961357607248 has 20 divisors (see below), whose sum is σ = 30936983695380. Its totient is φ = 7977619879424.

The previous prime is 15961357607219. The next prime is 15961357607287. The reversal of 15961357607248 is 84270675316951.

It can be written as a sum of positive squares in 2 ways, for example, as 7587093963024 + 8374263644224 = 2754468^2 + 2893832^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 15961357607248.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 191139715 + ... + 191223202.

It is an arithmetic number, because the mean of its divisors is an integer number (1546849184769).

It is a 1-persistent number, because it is pandigital, but 2⋅15961357607248 = 31922715214496 is not.

Almost surely, 2^{15961357607248} is an apocalyptic number.

It is an amenable number.

15961357607248 is a deficient number, since it is larger than the sum of its proper divisors (14975626088132).

15961357607248 is a wasteful number, since it uses less digits than its factorization.

15961357607248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382365534 (or 382365528 counting only the distinct ones).

The product of its (nonzero) digits is 76204800, while the sum is 64.

The spelling of 15961357607248 in words is "fifteen trillion, nine hundred sixty-one billion, three hundred fifty-seven million, six hundred seven thousand, two hundred forty-eight".