51660560011115 has 32 divisors (see below), whose sum is σ = 67756936306176. Its totient is φ = 37499931624960.

The previous prime is 51660560011019. The next prime is 51660560011121. The reversal of 51660560011115 is 51111006506615.

It is a happy number.

It is not a de Polignac number, because 51660560011115 - 2⁴⁴ = 34068373966699 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 100556084 + ... + 101068526.

It is an arithmetic number, because the mean of its divisors is an integer number (2117404259568).

Almost surely, 2^{51660560011115} is an apocalyptic number.

51660560011115 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51660560011115 is a deficient number, since it is larger than the sum of its proper divisors (16096376295061).

51660560011115 is a wasteful number, since it uses less digits than its factorization.

51660560011115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515939.

The product of its (nonzero) digits is 27000, while the sum is 38.

The spelling of 51660560011115 in words is "fifty-one trillion, six hundred sixty billion, five hundred sixty million, eleven thousand, one hundred fifteen".