345557600645 has 16 divisors (see below), whose sum is σ = 441267782400. Its totient is φ = 258877073664.

The previous prime is 345557600621. The next prime is 345557600659. The reversal of 345557600645 is 546006755543.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 345557600645 - 2¹⁴ = 345557584261 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 345557600593 and 345557600602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10197617 + ... + 10231446.

It is an arithmetic number, because the mean of its divisors is an integer number (27579236400).

Almost surely, 2^345557600645 is an apocalyptic number.

It is an amenable number.

345557600645 is a deficient number, since it is larger than the sum of its proper divisors (95710181755).

345557600645 is a wasteful number, since it uses less digits than its factorization.

345557600645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20429284.

The product of its (nonzero) digits is 7560000, while the sum is 50.

The spelling of 345557600645 in words is "three hundred forty-five billion, five hundred fifty-seven million, six hundred thousand, six hundred forty-five".