243345664130 has 16 divisors (see below), whose sum is σ = 438588861624. Its totient is φ = 97212339840.

The previous prime is 243345664129. The next prime is 243345664153. The reversal of 243345664130 is 31466543342.

It can be written as a sum of positive squares in 4 ways, for example, as 147470592361 + 95875071769 = 384019^2 + 309637^2 .

It is a super-2 number, since 2×243345664130² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15732611 + ... + 15748070.

Almost surely, 2^243345664130 is an apocalyptic number.

243345664130 is a deficient number, since it is larger than the sum of its proper divisors (195243197494).

243345664130 is a wasteful number, since it uses less digits than its factorization.

243345664130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31481461.

The product of its (nonzero) digits is 622080, while the sum is 41.

The spelling of 243345664130 in words is "two hundred forty-three billion, three hundred forty-five million, six hundred sixty-four thousand, one hundred thirty".