51106660946 has 64 divisors (see below), whose sum is σ = 87728209920. Its totient is φ = 22117368000.

The previous prime is 51106660939. The next prime is 51106660967. The reversal of 51106660946 is 64906660115.

It is a super-2 number, since 2×51106660946² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51106660897 and 51106660906.

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 31 ways as a sum of consecutive naturals, for example, 32780915 + ... + 32782473.

It is an arithmetic number, because the mean of its divisors is an integer number (1370753280).

Almost surely, 2^51106660946 is an apocalyptic number.

51106660946 is a deficient number, since it is larger than the sum of its proper divisors (36621548974).

51106660946 is a wasteful number, since it uses less digits than its factorization.

51106660946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2351.

The product of its (nonzero) digits is 233280, while the sum is 44.

The spelling of 51106660946 in words is "fifty-one billion, one hundred six million, six hundred sixty thousand, nine hundred forty-six".