346438816660 has 24 divisors (see below), whose sum is σ = 727627902120. Its totient is φ = 138555262464.

The previous prime is 346438816573. The next prime is 346438816739. The reversal of 346438816660 is 66618834643.

It can be written as a sum of positive squares in 4 ways, for example, as 31509090064 + 314929726596 = 177508^2 + 561186^2 .

It is a congruent number.

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, 1125945 + ... + 1400224.

It is an arithmetic number, because the mean of its divisors is an integer number (30317829255).

Almost surely, 2^346438816660 is an apocalyptic number.

It is an amenable number.

346438816660 is an abundant number, since it is smaller than the sum of its proper divisors (381189085460).

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

346438816660 is a wasteful number, since it uses less digits than its factorization.

346438816660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2533035 (or 2533033 counting only the distinct ones).

The product of its (nonzero) digits is 11943936, while the sum is 55.

The spelling of 346438816660 in words is "three hundred forty-six billion, four hundred thirty-eight million, eight hundred sixteen thousand, six hundred sixty".