305405401611206 has 16 divisors (see below), whose sum is σ = 510359159192400. Its totient is φ = 136095775783968.

The previous prime is 305405401611203. The next prime is 305405401611227. The reversal of 305405401611206 is 602116104504503.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 305405401611206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305405401611203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202523475116 + ... + 202523476623.

It is an arithmetic number, because the mean of its divisors is an integer number (31897447449525).

Almost surely, 2^{305405401611206} is an apocalyptic number.

305405401611206 is a deficient number, since it is larger than the sum of its proper divisors (204953757581194).

305405401611206 is a wasteful number, since it uses less digits than its factorization.

305405401611206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405046951783.

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 305405401611206 in words is "three hundred five trillion, four hundred five billion, four hundred one million, six hundred eleven thousand, two hundred six".