65654969396018 has 16 divisors (see below), whose sum is σ = 98695713320064. Its totient is φ = 32756441839440.

The previous prime is 65654969396017. The next prime is 65654969396111. The reversal of 65654969396018 is 81069396945656.

It is a self number, because there is not a number n which added to its sum of digits gives 65654969396018.

It is not an unprimeable number, because it can be changed into a prime (65654969396017) 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, 7870298 + ... + 13901493.

It is an arithmetic number, because the mean of its divisors is an integer number (6168482082504).

Almost surely, 2^{65654969396018} is an apocalyptic number.

65654969396018 is a deficient number, since it is larger than the sum of its proper divisors (33040743924046).

65654969396018 is a wasteful number, since it uses less digits than its factorization.

65654969396018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21775057.

The product of its (nonzero) digits is 2267481600, while the sum is 77.

The spelling of 65654969396018 in words is "sixty-five trillion, six hundred fifty-four billion, nine hundred sixty-nine million, three hundred ninety-six thousand, eighteen".