65445256345403 has 16 divisors (see below), whose sum is σ = 75236561309952. Its totient is φ = 56345463900000.

The previous prime is 65445256345379. The next prime is 65445256345429. The reversal of 65445256345403 is 30454365254456.

It is not a de Polignac number, because 65445256345403 - 2¹⁰ = 65445256344379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65445256345453) 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, 1280553173 + ... + 1280604278.

It is an arithmetic number, because the mean of its divisors is an integer number (4702285081872).

Almost surely, 2^{65445256345403} is an apocalyptic number.

65445256345403 is a deficient number, since it is larger than the sum of its proper divisors (9791304964549).

65445256345403 is a wasteful number, since it uses less digits than its factorization.

65445256345403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2561157586.

The product of its (nonzero) digits is 103680000, while the sum is 56.

The spelling of 65445256345403 in words is "sixty-five trillion, four hundred forty-five billion, two hundred fifty-six million, three hundred forty-five thousand, four hundred three".