305442304102556 has 24 divisors (see below), whose sum is σ = 557779648275360. Its totient is φ = 146077057947392.

The previous prime is 305442304102553. The next prime is 305442304102657. The reversal of 305442304102556 is 655201403244503.

It is a super-2 number, since 2×305442304102556² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305442304102553) 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, 42612041 + ... + 49261248.

It is an arithmetic number, because the mean of its divisors is an integer number (23240818678140).

Almost surely, 2^{305442304102556} is an apocalyptic number.

It is an amenable number.

305442304102556 is a deficient number, since it is larger than the sum of its proper divisors (252337344172804).

305442304102556 is a wasteful number, since it uses less digits than its factorization.

305442304102556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91909453 (or 91909451 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 44.

The spelling of 305442304102556 in words is "three hundred five trillion, four hundred forty-two billion, three hundred four million, one hundred two thousand, five hundred fifty-six".