3420111656 has 32 divisors (see below), whose sum is σ = 6909152040. Its totient is φ = 1577791488.

The previous prime is 3420111649. The next prime is 3420111679. The reversal of 3420111656 is 6561110243.

It is a happy number.

3420111656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1895209156 + 1524902500 = 43534^2 + 39050^2 .

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, 270140 + ... + 282516.

Almost surely, 2^3420111656 is an apocalyptic number.

It is an amenable number.

3420111656 is an abundant number, since it is smaller than the sum of its proper divisors (3489040384).

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

3420111656 is a wasteful number, since it uses less digits than its factorization.

3420111656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15053 (or 15049 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 3420111656 is about 58481.7206997195. The cubic root of 3420111656 is about 1506.6536506128.

Adding to 3420111656 its reverse (6561110243), we get a palindrome (9981221899).

The spelling of 3420111656 in words is "three billion, four hundred twenty million, one hundred eleven thousand, six hundred fifty-six".