306115556345140 has 24 divisors (see below), whose sum is σ = 642850048348200. Its totient is φ = 122444816819328.

The previous prime is 306115556345129. The next prime is 306115556345153. The reversal of 306115556345140 is 41543655511603.

It can be written as a sum of positive squares in 4 ways, for example, as 5160648150436 + 300954908194704 = 2271706^2 + 17348052^2 .

It is a super-2 number, since 2×306115556345140² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 86070867 + ... + 89556826.

It is an arithmetic number, because the mean of its divisors is an integer number (26785418681175).

Almost surely, 2^{306115556345140} is an apocalyptic number.

It is an amenable number.

306115556345140 is an abundant number, since it is smaller than the sum of its proper divisors (336734492003060).

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

306115556345140 is a wasteful number, since it uses less digits than its factorization.

306115556345140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175714851 (or 175714849 counting only the distinct ones).

The product of its (nonzero) digits is 3240000, while the sum is 49.

The spelling of 306115556345140 in words is "three hundred six trillion, one hundred fifteen billion, five hundred fifty-six million, three hundred forty-five thousand, one hundred forty".