343500553340520 has 128 divisors (see below), whose sum is σ = 1032033719808000. Its totient is φ = 91463992494336.

The previous prime is 343500553340437. The next prime is 343500553340561. The reversal of 343500553340520 is 25043355005343.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 802306747 + ... + 802734773.

It is an arithmetic number, because the mean of its divisors is an integer number (8062763436000).

Almost surely, 2^{343500553340520} is an apocalyptic number.

343500553340520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

343500553340520 is an abundant number, since it is smaller than the sum of its proper divisors (688533166467480).

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

343500553340520 is a wasteful number, since it uses less digits than its factorization.

343500553340520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437967 (or 437963 counting only the distinct ones).

The product of its (nonzero) digits is 1620000, while the sum is 42.

The spelling of 343500553340520 in words is "three hundred forty-three trillion, five hundred billion, five hundred fifty-three million, three hundred forty thousand, five hundred twenty".