65733287008638 has 16 divisors (see below), whose sum is σ = 131466695276160. Its totient is φ = 21911075459736.

The previous prime is 65733287008601. The next prime is 65733287008643. The reversal of 65733287008638 is 83680078233756.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2976081 + ... + 11845827.

It is an arithmetic number, because the mean of its divisors is an integer number (8216668454760).

Almost surely, 2^{65733287008638} is an apocalyptic number.

65733287008638 is an abundant number, since it is smaller than the sum of its proper divisors (65733408267522).

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

65733287008638 is a wasteful number, since it uses less digits than its factorization.

65733287008638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10104911.

The product of its (nonzero) digits is 243855360, while the sum is 66.

The spelling of 65733287008638 in words is "sixty-five trillion, seven hundred thirty-three billion, two hundred eighty-seven million, eight thousand, six hundred thirty-eight".