54311866665 has 16 divisors (see below), whose sum is σ = 99313127808. Its totient is φ = 24828281856.

The previous prime is 54311866649. The next prime is 54311866691. The reversal of 54311866665 is 56666811345.

It is not a de Polignac number, because 54311866665 - 2⁴ = 54311866649 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 258627832 + ... + 258628041.

It is an arithmetic number, because the mean of its divisors is an integer number (6207070488).

Almost surely, 2^54311866665 is an apocalyptic number.

It is an amenable number.

54311866665 is a deficient number, since it is larger than the sum of its proper divisors (45001261143).

54311866665 is a wasteful number, since it uses less digits than its factorization.

54311866665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517255888.

The product of its digits is 3110400, while the sum is 51.

The spelling of 54311866665 in words is "fifty-four billion, three hundred eleven million, eight hundred sixty-six thousand, six hundred sixty-five".