345515656 has 16 divisors (see below), whose sum is σ = 648435600. Its totient is φ = 172599504.

The previous prime is 345515629. The next prime is 345515669. The reversal of 345515656 is 656515543.

It is a super-2 number, since 2×345515656² = 238762137082220672, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10246 + ... + 28213.

It is an arithmetic number, because the mean of its divisors is an integer number (40527225).

Almost surely, 2^345515656 is an apocalyptic number.

It is an amenable number.

345515656 is a deficient number, since it is larger than the sum of its proper divisors (302919944).

345515656 is a wasteful number, since it uses less digits than its factorization.

345515656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39588 (or 39584 counting only the distinct ones).

The product of its digits is 270000, while the sum is 40.

The square root of 345515656 is about 18588.0514309596. The cubic root of 345515656 is about 701.7071637874.

The spelling of 345515656 in words is "three hundred forty-five million, five hundred fifteen thousand, six hundred fifty-six".