51715220606 has 8 divisors (see below), whose sum is σ = 88654663920. Its totient is φ = 22163665968.

The previous prime is 51715220591. The next prime is 51715220701. The reversal of 51715220606 is 60602251715.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1846972151 + ... + 1846972178.

It is an arithmetic number, because the mean of its divisors is an integer number (11081832990).

Almost surely, 2^51715220606 is an apocalyptic number.

51715220606 is a deficient number, since it is larger than the sum of its proper divisors (36939443314).

51715220606 is a wasteful number, since it uses less digits than its factorization.

51715220606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3693944338.

The product of its (nonzero) digits is 25200, while the sum is 35.

The spelling of 51715220606 in words is "fifty-one billion, seven hundred fifteen million, two hundred twenty thousand, six hundred six".