343203634666656 has 72 divisors (see below), whose sum is σ = 991985095742004. Its totient is φ = 112525781852160.

The previous prime is 343203634666589. The next prime is 343203634666687. The reversal of 343203634666656 is 656666436302343.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 263278532739600 + 79925101927056 = 16225860^2 + 8940084^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a junction number, because it is equal to n+sod(n) for n = 343203634666593 and 343203634666602.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9767845441 + ... + 9767880576.

Almost surely, 2^{343203634666656} is an apocalyptic number.

343203634666656 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

343203634666656 is an abundant number, since it is smaller than the sum of its proper divisors (648781461075348).

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

343203634666656 is a wasteful number, since it uses less digits than its factorization.

343203634666656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19535726094 (or 19535726083 counting only the distinct ones).

The product of its (nonzero) digits is 604661760, while the sum is 63.

The spelling of 343203634666656 in words is "three hundred forty-three trillion, two hundred three billion, six hundred thirty-four million, six hundred sixty-six thousand, six hundred fifty-six".