616630145212 has 24 divisors (see below), whose sum is σ = 1081170550656. Its totient is φ = 307724409408.

The previous prime is 616630145189. The next prime is 616630145221. The reversal of 616630145212 is 212541036616.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 33996898 + ... + 34015030.

It is an arithmetic number, because the mean of its divisors is an integer number (45048772944).

Almost surely, 2^616630145212 is an apocalyptic number.

It is an amenable number.

616630145212 is a deficient number, since it is larger than the sum of its proper divisors (464540405444).

616630145212 is a wasteful number, since it uses less digits than its factorization.

616630145212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33957 (or 33955 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 616630145212 in words is "six hundred sixteen billion, six hundred thirty million, one hundred forty-five thousand, two hundred twelve".