243345664104 has 64 divisors (see below), whose sum is σ = 617233348800. Its totient is φ = 79934593536.

The previous prime is 243345664091. The next prime is 243345664129. The reversal of 243345664104 is 401466543342.

It is a super-2 number, since 2×243345664104² (a number of 24 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 1977862 + ... + 2097290.

It is an arithmetic number, because the mean of its divisors is an integer number (9644271075).

Almost surely, 2^243345664104 is an apocalyptic number.

243345664104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

243345664104 is an abundant number, since it is smaller than the sum of its proper divisors (373887684696).

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

243345664104 is a wasteful number, since it uses less digits than its factorization.

243345664104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120674 (or 120670 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 42.

The spelling of 243345664104 in words is "two hundred forty-three billion, three hundred forty-five million, six hundred sixty-four thousand, one hundred four".