345666515 has 8 divisors (see below), whose sum is σ = 429103440. Its totient is φ = 266997472.

The previous prime is 345666509. The next prime is 345666521. The reversal of 345666515 is 515666543.

It is an interprime number because it is at equal distance from previous prime (345666509) and next prime (345666521).

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 345666515 - 2⁴ = 345666499 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1191809 + ... + 1192098.

It is an arithmetic number, because the mean of its divisors is an integer number (53637930).

Almost surely, 2^345666515 is an apocalyptic number.

345666515 is a deficient number, since it is larger than the sum of its proper divisors (83436925).

345666515 is a wasteful number, since it uses less digits than its factorization.

345666515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2383941.

The product of its digits is 324000, while the sum is 41.

The square root of 345666515 is about 18592.1089443882. The cubic root of 345666515 is about 701.8092753571.

The spelling of 345666515 in words is "three hundred forty-five million, six hundred sixty-six thousand, five hundred fifteen".