51216029606 has 24 divisors (see below), whose sum is σ = 89657895096. Its totient is φ = 21878216640.

The previous prime is 51216029587. The next prime is 51216029611. The reversal of 51216029606 is 60692061215.

It is a self number, because there is not a number n which added to its sum of digits gives 51216029606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 821075 + ... + 881246.

It is an arithmetic number, because the mean of its divisors is an integer number (3735745629).

Almost surely, 2^51216029606 is an apocalyptic number.

51216029606 is a deficient number, since it is larger than the sum of its proper divisors (38441865490).

51216029606 is a wasteful number, since it uses less digits than its factorization.

51216029606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1702644 (or 1702637 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The spelling of 51216029606 in words is "fifty-one billion, two hundred sixteen million, twenty-nine thousand, six hundred six".