305313140006506 has 4 divisors (see below), whose sum is σ = 457969710009762. Its totient is φ = 152656570003252.

The previous prime is 305313140006491. The next prime is 305313140006551. The reversal of 305313140006506 is 605600041313503.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 205975340089281 + 99337799917225 = 14351841^2 + 9966835^2 .

It is a super-2 number, since 2×305313140006506² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76328285001625 + ... + 76328285001628.

Almost surely, 2^{305313140006506} is an apocalyptic number.

305313140006506 is a deficient number, since it is larger than the sum of its proper divisors (152656570003256).

305313140006506 is a wasteful number, since it uses less digits than its factorization.

305313140006506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152656570003255.

The product of its (nonzero) digits is 97200, while the sum is 37.

The spelling of 305313140006506 in words is "three hundred five trillion, three hundred thirteen billion, one hundred forty million, six thousand, five hundred six".