664610352342 has 16 divisors (see below), whose sum is σ = 1330581228912. Its totient is φ = 221310030080.

The previous prime is 664610352283. The next prime is 664610352383. The reversal of 664610352342 is 243253016466.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 664610352294 and 664610352303.

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, 56682159 + ... + 56693882.

It is an arithmetic number, because the mean of its divisors is an integer number (83161326807).

Almost surely, 2^664610352342 is an apocalyptic number.

664610352342 is an abundant number, since it is smaller than the sum of its proper divisors (665970876570).

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

664610352342 is a wasteful number, since it uses less digits than its factorization.

664610352342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113377023.

The product of its (nonzero) digits is 622080, while the sum is 42.

The spelling of 664610352342 in words is "six hundred sixty-four billion, six hundred ten million, three hundred fifty-two thousand, three hundred forty-two".