80028065540705 has 8 divisors (see below), whose sum is σ = 96033829929000. Its totient is φ = 64022351579136.

The previous prime is 80028065540701. The next prime is 80028065540707. The reversal of 80028065540705 is 50704556082008.

It can be written as a sum of positive squares in 4 ways, for example, as 11696283720289 + 68331781820416 = 3419983^2 + 8266304^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80028065540705 - 2² = 80028065540701 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80028065540701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9022610 + ... + 15539099.

It is an arithmetic number, because the mean of its divisors is an integer number (12004228741125).

Almost surely, 2^{80028065540705} is an apocalyptic number.

It is an amenable number.

80028065540705 is a deficient number, since it is larger than the sum of its proper divisors (16005764388295).

80028065540705 is a wasteful number, since it uses less digits than its factorization.

80028065540705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25213363.

The product of its (nonzero) digits is 2688000, while the sum is 50.

The spelling of 80028065540705 in words is "eighty trillion, twenty-eight billion, sixty-five million, five hundred forty thousand, seven hundred five".