305445420663 has 32 divisors (see below), whose sum is σ = 429382926336. Its totient is φ = 192755632608.

The previous prime is 305445420653. The next prime is 305445420671. The reversal of 305445420663 is 366024544503.

It is a happy number.

It is not a de Polignac number, because 305445420663 - 2⁹ = 305445420151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305445420653) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11122956 + ... + 11150382.

It is an arithmetic number, because the mean of its divisors is an integer number (13418216448).

Almost surely, 2^305445420663 is an apocalyptic number.

305445420663 is a deficient number, since it is larger than the sum of its proper divisors (123937505673).

305445420663 is a wasteful number, since it uses less digits than its factorization.

305445420663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29123.

The product of its (nonzero) digits is 1036800, while the sum is 42.

The spelling of 305445420663 in words is "three hundred five billion, four hundred forty-five million, four hundred twenty thousand, six hundred sixty-three".