345656887668 has 72 divisors (see below), whose sum is σ = 919822350720. Its totient is φ = 109143884160.

The previous prime is 345656887643. The next prime is 345656887669. The reversal of 345656887668 is 866788656543.

345656887668 is a `hidden beast` number, since 3 + 4 + 56 + 568 + 8 + 7 + 6 + 6 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 345656887596 and 345656887605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345656887669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9359896 + ... + 9396752.

Almost surely, 2^345656887668 is an apocalyptic number.

345656887668 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

345656887668 is an abundant number, since it is smaller than the sum of its proper divisors (574165463052).

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

345656887668 is a wasteful number, since it uses less digits than its factorization.

345656887668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50597 (or 50592 counting only the distinct ones).

The product of its digits is 1393459200, while the sum is 72.

The spelling of 345656887668 in words is "three hundred forty-five billion, six hundred fifty-six million, eight hundred eighty-seven thousand, six hundred sixty-eight".