54165666759 has 4 divisors (see below), whose sum is σ = 72220889016. Its totient is φ = 36110444504.

The previous prime is 54165666757. The next prime is 54165666769. The reversal of 54165666759 is 95766656145.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 54165666759 - 2¹ = 54165666757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54165666757) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9027611124 + ... + 9027611129.

It is an arithmetic number, because the mean of its divisors is an integer number (18055222254).

Almost surely, 2^54165666759 is an apocalyptic number.

54165666759 is a deficient number, since it is larger than the sum of its proper divisors (18055222257).

54165666759 is a wasteful number, since it uses less digits than its factorization.

54165666759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18055222256.

The product of its digits is 40824000, while the sum is 60.

The spelling of 54165666759 in words is "fifty-four billion, one hundred sixty-five million, six hundred sixty-six thousand, seven hundred fifty-nine".