65665500110994 has 32 divisors (see below), whose sum is σ = 150092930148480. Its totient is φ = 18761526652032.

The previous prime is 65665500110983. The next prime is 65665500111019. The reversal of 65665500110994 is 49901100556656.

It is a Curzon number.

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, 18556492 + ... + 21809960.

It is an arithmetic number, because the mean of its divisors is an integer number (4690404067140).

Almost surely, 2^{65665500110994} is an apocalyptic number.

65665500110994 is an abundant number, since it is smaller than the sum of its proper divisors (84427430037486).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65665500110994 is a wasteful number, since it uses less digits than its factorization.

65665500110994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3734034.

The product of its (nonzero) digits is 8748000, while the sum is 57.

The spelling of 65665500110994 in words is "sixty-five trillion, six hundred sixty-five billion, five hundred million, one hundred ten thousand, nine hundred ninety-four".