343643607553 has 16 divisors (see below), whose sum is σ = 365397620224. Its totient is φ = 322609754880.

The previous prime is 343643607547. The next prime is 343643607577. The reversal of 343643607553 is 355706346343.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-343643607553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 343643607497 and 343643607506.

It is not an unprimeable number, because it can be changed into a prime (343643607053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57975 + ... + 831052.

It is an arithmetic number, because the mean of its divisors is an integer number (22837351264).

Almost surely, 2^343643607553 is an apocalyptic number.

It is an amenable number.

343643607553 is a deficient number, since it is larger than the sum of its proper divisors (21754012671).

343643607553 is a wasteful number, since it uses less digits than its factorization.

343643607553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889432.

The product of its (nonzero) digits is 8164800, while the sum is 49.

The spelling of 343643607553 in words is "three hundred forty-three billion, six hundred forty-three million, six hundred seven thousand, five hundred fifty-three".