616151243604212 has 12 divisors (see below), whose sum is σ = 1078300713570276. Its totient is φ = 308065325441280.

The previous prime is 616151243604173. The next prime is 616151243604251. The reversal of 616151243604212 is 212406342151616.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (616151243604173) and next prime (616151243604251).

It can be written as a sum of positive squares in 2 ways, for example, as 505347072965476 + 110804170638736 = 22479926^2 + 10526356^2 .

It is a super-2 number, since 2×616151243604212² (a number of 30 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 2573955563 + ... + 2574194930.

It is an arithmetic number, because the mean of its divisors is an integer number (89858392797523).

Almost surely, 2^{616151243604212} is an apocalyptic number.

It is an amenable number.

616151243604212 is a deficient number, since it is larger than the sum of its proper divisors (462149469966064).

616151243604212 is a wasteful number, since it uses less digits than its factorization.

616151243604212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5148180418 (or 5148180416 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 44.

Adding to 616151243604212 its reverse (212406342151616), we get a palindrome (828557585755828).

The spelling of 616151243604212 in words is "six hundred sixteen trillion, one hundred fifty-one billion, two hundred forty-three million, six hundred four thousand, two hundred twelve".