8335021256545 has 16 divisors (see below), whose sum is σ = 10008726896592. Its totient is φ = 6663550924800.

The previous prime is 8335021256543. The next prime is 8335021256593. The reversal of 8335021256545 is 5456521205338.

It can be written as a sum of positive squares in 8 ways, for example, as 53679792721 + 8281341463824 = 231689^2 + 2877732^2 .

It is not a de Polignac number, because 8335021256545 - 2¹ = 8335021256543 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8335021256543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45466789 + ... + 45649741.

It is an arithmetic number, because the mean of its divisors is an integer number (625545431037).

Almost surely, 2^{8335021256545} is an apocalyptic number.

It is an amenable number.

8335021256545 is a deficient number, since it is larger than the sum of its proper divisors (1673705640047).

8335021256545 is a wasteful number, since it uses less digits than its factorization.

8335021256545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189012.

The product of its (nonzero) digits is 4320000, while the sum is 49.

The spelling of 8335021256545 in words is "eight trillion, three hundred thirty-five billion, twenty-one million, two hundred fifty-six thousand, five hundred forty-five".