306621264361345 has 8 divisors (see below), whose sum is σ = 368341583457960. Its totient is φ = 245032967339520.

The previous prime is 306621264361331. The next prime is 306621264361393. The reversal of 306621264361345 is 543163462126603.

It can be written as a sum of positive squares in 4 ways, for example, as 1427492079729 + 305193772281616 = 1194777^2 + 17469796^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 306621264361345 - 2¹³ = 306621264353153 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 306621264361292 and 306621264361301.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33005513586 + ... + 33005522875.

It is an arithmetic number, because the mean of its divisors is an integer number (46042697932245).

Almost surely, 2^{306621264361345} is an apocalyptic number.

It is an amenable number.

306621264361345 is a deficient number, since it is larger than the sum of its proper divisors (61720319096615).

306621264361345 is an equidigital number, since it uses as much as digits as its factorization.

306621264361345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66011037395.

The product of its (nonzero) digits is 11197440, while the sum is 52.

The spelling of 306621264361345 in words is "three hundred six trillion, six hundred twenty-one billion, two hundred sixty-four million, three hundred sixty-one thousand, three hundred forty-five".