665562614426 has 8 divisors (see below), whose sum is σ = 998923348704. Its totient is φ = 332588164860.

The previous prime is 665562614417. The next prime is 665562614441. The reversal of 665562614426 is 624416265566.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 96566870 + ... + 96573761.

It is an arithmetic number, because the mean of its divisors is an integer number (124865418588).

Almost surely, 2^665562614426 is an apocalyptic number.

665562614426 is a deficient number, since it is larger than the sum of its proper divisors (333360734278).

665562614426 is a wasteful number, since it uses less digits than its factorization.

665562614426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193142356.

The product of its digits is 12441600, while the sum is 53.

The spelling of 665562614426 in words is "six hundred sixty-five billion, five hundred sixty-two million, six hundred fourteen thousand, four hundred twenty-six".