662566423504 has 10 divisors (see below), whose sum is σ = 1283722445570. Its totient is φ = 331283211744.

The previous prime is 662566423481. The next prime is 662566423543. The reversal of 662566423504 is 405324665266.

It can be written as a sum of positive squares in only one way, i.e., 659746813504 + 2819610000 = 812248^2 + 53100^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20705200719 + ... + 20705200750.

It is an arithmetic number, because the mean of its divisors is an integer number (128372244557).

Almost surely, 2^662566423504 is an apocalyptic number.

It is an amenable number.

662566423504 is a deficient number, since it is larger than the sum of its proper divisors (621156022066).

662566423504 is a wasteful number, since it uses less digits than its factorization.

662566423504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41410401477 (or 41410401471 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 49.

The spelling of 662566423504 in words is "six hundred sixty-two billion, five hundred sixty-six million, four hundred twenty-three thousand, five hundred four".