65671215100489 has 16 divisors (see below), whose sum is σ = 69264696528000. Its totient is φ = 62091560361600.

The previous prime is 65671215100397. The next prime is 65671215100493. The reversal of 65671215100489 is 98400151217656.

It is a cyclic number.

It is not a de Polignac number, because 65671215100489 - 2²³ = 65671206711881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65671215100499) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18685764 + ... + 21920314.

It is an arithmetic number, because the mean of its divisors is an integer number (4329043533000).

Almost surely, 2^{65671215100489} is an apocalyptic number.

It is an amenable number.

65671215100489 is a deficient number, since it is larger than the sum of its proper divisors (3593481427511).

65671215100489 is a wasteful number, since it uses less digits than its factorization.

65671215100489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3236688.

The product of its (nonzero) digits is 3628800, while the sum is 55.

The spelling of 65671215100489 in words is "sixty-five trillion, six hundred seventy-one billion, two hundred fifteen million, one hundred thousand, four hundred eighty-nine".