345161515865 has 8 divisors (see below), whose sum is σ = 414299585160. Its totient is φ = 276058701952.

The previous prime is 345161515823. The next prime is 345161515921. The reversal of 345161515865 is 568515161543.

It can be written as a sum of positive squares in 4 ways, for example, as 127098667081 + 218062848784 = 356509^2 + 466972^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 345161515865 - 2²⁴ = 345144738649 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8792300 + ... + 8831469.

It is an arithmetic number, because the mean of its divisors is an integer number (51787448145).

Almost surely, 2^345161515865 is an apocalyptic number.

It is an amenable number.

345161515865 is a deficient number, since it is larger than the sum of its proper divisors (69138069295).

345161515865 is a wasteful number, since it uses less digits than its factorization.

345161515865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17627691.

The product of its digits is 2160000, while the sum is 50.

The spelling of 345161515865 in words is "three hundred forty-five billion, one hundred sixty-one million, five hundred fifteen thousand, eight hundred sixty-five".