51755600240666 has 16 divisors (see below), whose sum is σ = 88727838203904. Its totient is φ = 22179983512464.

The previous prime is 51755600240653. The next prime is 51755600240671. The reversal of 51755600240666 is 66604200655715.

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 7 ways as a sum of consecutive naturals, for example, 82009370 + ... + 82638053.

It is an arithmetic number, because the mean of its divisors is an integer number (5545489887744).

Almost surely, 2^{51755600240666} is an apocalyptic number.

51755600240666 is a deficient number, since it is larger than the sum of its proper divisors (36972237963238).

51755600240666 is a wasteful number, since it uses less digits than its factorization.

51755600240666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164669885.

The product of its (nonzero) digits is 9072000, while the sum is 53.

The spelling of 51755600240666 in words is "fifty-one trillion, seven hundred fifty-five billion, six hundred million, two hundred forty thousand, six hundred sixty-six".