3440420065656 has 48 divisors (see below), whose sum is σ = 10648919252400. Its totient is φ = 982977161472.

The previous prime is 3440420065639. The next prime is 3440420065717. The reversal of 3440420065656 is 6565600240443.

It is a happy number.

3440420065656 is a `hidden beast` number, since 3 + 4 + 40 + 42 + 0 + 0 + 6 + 565 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3413114641 + ... + 3413115648.

It is an arithmetic number, because the mean of its divisors is an integer number (221852484425).

Almost surely, 2^{3440420065656} is an apocalyptic number.

3440420065656 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3440420065656 is an abundant number, since it is smaller than the sum of its proper divisors (7208499186744).

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

3440420065656 is a wasteful number, since it uses less digits than its factorization.

3440420065656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6826230308 (or 6826230301 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 45.

The spelling of 3440420065656 in words is "three trillion, four hundred forty billion, four hundred twenty million, sixty-five thousand, six hundred fifty-six".