345660345 has 32 divisors (see below), whose sum is σ = 619376640. Its totient is φ = 182891520.

The previous prime is 345660319. The next prime is 345660347. The reversal of 345660345 is 543066543.

345660345 is a `hidden beast` number, since 3 + 4 + 5 + 6 + 603 + 45 = 666.

It is not a de Polignac number, because 345660345 - 2⁶ = 345660281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (345660347) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7065 + ... + 27225.

It is an arithmetic number, because the mean of its divisors is an integer number (19355520).

Almost surely, 2^345660345 is an apocalyptic number.

It is an amenable number.

345660345 is a deficient number, since it is larger than the sum of its proper divisors (273716295).

345660345 is a wasteful number, since it uses less digits than its factorization.

345660345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20302 (or 20296 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

The square root of 345660345 is about 18591.9430130366. The cubic root of 345660345 is about 701.8050996668.

The spelling of 345660345 in words is "three hundred forty-five million, six hundred sixty thousand, three hundred forty-five".