305405552545156 has 48 divisors (see below), whose sum is σ = 637539958298880. Its totient is φ = 125163551272320.

The previous prime is 305405552545147. The next prime is 305405552545187. The reversal of 305405552545156 is 651545255504503.

It is a junction number, because it is equal to n+sod(n) for n = 305405552545097 and 305405552545106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61541335 + ... + 66318526.

It is an arithmetic number, because the mean of its divisors is an integer number (13282082464560).

Almost surely, 2^{305405552545156} is an apocalyptic number.

It is an amenable number.

305405552545156 is an abundant number, since it is smaller than the sum of its proper divisors (332134405753724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

305405552545156 is a wasteful number, since it uses less digits than its factorization.

305405552545156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127863604 (or 127863602 counting only the distinct ones).

The product of its (nonzero) digits is 45000000, while the sum is 55.

The spelling of 305405552545156 in words is "three hundred five trillion, four hundred five billion, five hundred fifty-two million, five hundred forty-five thousand, one hundred fifty-six".