51216224314655 has 8 divisors (see below), whose sum is σ = 61460809344000. Its totient is φ = 40972086007456.

The previous prime is 51216224314589. The next prime is 51216224314693. The reversal of 51216224314655 is 55641342261215.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 51216224314655 - 2¹⁶ = 51216224249119 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111428255 + ... + 111886944.

It is an arithmetic number, because the mean of its divisors is an integer number (7682601168000).

Almost surely, 2^{51216224314655} is an apocalyptic number.

51216224314655 is a deficient number, since it is larger than the sum of its proper divisors (10244585029345).

51216224314655 is a wasteful number, since it uses less digits than its factorization.

51216224314655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223361073.

The product of its digits is 1728000, while the sum is 47.

The spelling of 51216224314655 in words is "fifty-one trillion, two hundred sixteen billion, two hundred twenty-four million, three hundred fourteen thousand, six hundred fifty-five".