65416317509890 has 16 divisors (see below), whose sum is σ = 117751296283200. Its totient is φ = 26166099278320.

The previous prime is 65416317509849. The next prime is 65416317509899. The reversal of 65416317509890 is 9890571361456.

It is not an unprimeable number, because it can be changed into a prime (65416317509899) 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, 52822990 + ... + 54047209.

It is an arithmetic number, because the mean of its divisors is an integer number (7359456017700).

Almost surely, 2^{65416317509890} is an apocalyptic number.

65416317509890 is a deficient number, since it is larger than the sum of its proper divisors (52334978773310).

65416317509890 is a wasteful number, since it uses less digits than its factorization.

65416317509890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106931417.

The product of its (nonzero) digits is 48988800, while the sum is 64.

The spelling of 65416317509890 in words is "sixty-five trillion, four hundred sixteen billion, three hundred seventeen million, five hundred nine thousand, eight hundred ninety".