605999971600 has 45 divisors (see below), whose sum is σ = 1455952337733. Its totient is φ = 242393760960.

The previous prime is 605999971561. The next prime is 605999971613. The reversal of 605999971600 is 6179999506.

The square root of 605999971600 is 778460.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 218159989776 + 387839981824 = 467076^2 + 622768^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 15549739 + ... + 15588661.

Almost surely, 2^605999971600 is an apocalyptic number.

605999971600 is the 778460-th square number.

It is an amenable number.

605999971600 is an abundant number, since it is smaller than the sum of its proper divisors (849952366133).

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

605999971600 is an frugal number, since it uses more digits than its factorization.

605999971600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77864 (or 38930 counting only the distinct ones).

The product of its (nonzero) digits is 8266860, while the sum is 61.

The spelling of 605999971600 in words is "six hundred five billion, nine hundred ninety-nine million, nine hundred seventy-one thousand, six hundred".