305013665545 has 24 divisors (see below), whose sum is σ = 381343644864. Its totient is φ = 234185464128.

The previous prime is 305013665533. The next prime is 305013665587. The reversal of 305013665545 is 545566310503.

It is a de Polignac number, because none of the positive numbers 2^k-305013665545 is a prime.

It is a Duffinian 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 23 ways as a sum of consecutive naturals, for example, 485062 + ... + 919408.

It is an arithmetic number, because the mean of its divisors is an integer number (15889318536).

Almost surely, 2^305013665545 is an apocalyptic number.

It is an amenable number.

305013665545 is a deficient number, since it is larger than the sum of its proper divisors (76329979319).

305013665545 is a wasteful number, since it uses less digits than its factorization.

305013665545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434577 (or 434548 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 43.

The spelling of 305013665545 in words is "three hundred five billion, thirteen million, six hundred sixty-five thousand, five hundred forty-five".