345621160023 has 4 divisors (see below), whose sum is σ = 460828213368. Its totient is φ = 230414106680.

The previous prime is 345621160019. The next prime is 345621160033. The reversal of 345621160023 is 320061126543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320061126543 = 3 ⋅106687042181.

It is a cyclic number.

It is not a de Polignac number, because 345621160023 - 2² = 345621160019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345621160033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57603526668 + ... + 57603526673.

It is an arithmetic number, because the mean of its divisors is an integer number (115207053342).

Almost surely, 2^345621160023 is an apocalyptic number.

345621160023 is a deficient number, since it is larger than the sum of its proper divisors (115207053345).

345621160023 is a wasteful number, since it uses less digits than its factorization.

345621160023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115207053344.

The product of its (nonzero) digits is 25920, while the sum is 33.

Adding to 345621160023 its reverse (320061126543), we get a palindrome (665682286566).

The spelling of 345621160023 in words is "three hundred forty-five billion, six hundred twenty-one million, one hundred sixty thousand, twenty-three".