51106105506 has 16 divisors (see below), whose sum is σ = 102215950848. Its totient is φ = 17034745200.

The previous prime is 51106105481. The next prime is 51106105511. The reversal of 51106105506 is 60550160115.

It is a super-2 number, since 2×51106105506² (a number of 22 digits) contains 22 as substring.

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, 40936 + ... + 322316.

It is an arithmetic number, because the mean of its divisors is an integer number (6388496928).

Almost surely, 2^51106105506 is an apocalyptic number.

51106105506 is an abundant number, since it is smaller than the sum of its proper divisors (51109845342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51106105506 is a wasteful number, since it uses less digits than its factorization.

51106105506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311657.

The product of its (nonzero) digits is 4500, while the sum is 30.

The spelling of 51106105506 in words is "fifty-one billion, one hundred six million, one hundred five thousand, five hundred six".