54071744136665 has 16 divisors (see below), whose sum is σ = 64992166578576. Its totient is φ = 43186689638400.

The previous prime is 54071744136649. The next prime is 54071744136689. The reversal of 54071744136665 is 56663144717045.

It can be written as a sum of positive squares in 8 ways, for example, as 13006063257664 + 41065680879001 = 3606392^2 + 6408251^2 .

It is not a de Polignac number, because 54071744136665 - 2⁴ = 54071744136649 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42814955 + ... + 44059775.

It is an arithmetic number, because the mean of its divisors is an integer number (4062010411161).

Almost surely, 2^{54071744136665} is an apocalyptic number.

It is an amenable number.

54071744136665 is a deficient number, since it is larger than the sum of its proper divisors (10920422441911).

54071744136665 is a wasteful number, since it uses less digits than its factorization.

54071744136665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1259020.

The product of its (nonzero) digits is 50803200, while the sum is 59.

The spelling of 54071744136665 in words is "fifty-four trillion, seventy-one billion, seven hundred forty-four million, one hundred thirty-six thousand, six hundred sixty-five".