345666507 has 8 divisors (see below), whose sum is σ = 461214720. Its totient is φ = 230281320.

The previous prime is 345666499. The next prime is 345666509. The reversal of 345666507 is 705666543.

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

It is not a de Polignac number, because 345666507 - 2³ = 345666499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (345666509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35719 + ... + 44352.

It is an arithmetic number, because the mean of its divisors is an integer number (57651840).

Almost surely, 2^345666507 is an apocalyptic number.

345666507 is a deficient number, since it is larger than the sum of its proper divisors (115548213).

345666507 is a wasteful number, since it uses less digits than its factorization.

345666507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81513.

The product of its (nonzero) digits is 453600, while the sum is 42.

The square root of 345666507 is about 18592.1087292432. The cubic root of 345666507 is about 701.8092699430.

The spelling of 345666507 in words is "three hundred forty-five million, six hundred sixty-six thousand, five hundred seven".