3345640656 has 20 divisors (see below), whose sum is σ = 8642905152. Its totient is φ = 1115213536.

The previous prime is 3345640633. The next prime is 3345640693. The reversal of 3345640656 is 6560465433.

It is a happy number.

3345640656 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3345640656² = 22386622798160220672, which contains 22 as substring.

It is a congruent number.

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, 34850376 + ... + 34850471.

Almost surely, 2^3345640656 is an apocalyptic number.

It is an amenable number.

3345640656 is an abundant number, since it is smaller than the sum of its proper divisors (5297264496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3345640656 is a wasteful number, since it uses less digits than its factorization.

3345640656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69700858 (or 69700852 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 42.

The square root of 3345640656 is about 57841.5132582127. The cubic root of 3345640656 is about 1495.6377939586.

The spelling of 3345640656 in words is "three billion, three hundred forty-five million, six hundred forty thousand, six hundred fifty-six".