66584260302 has 64 divisors (see below), whose sum is σ = 155645798400. Its totient is φ = 18597196800.

The previous prime is 66584260291. The next prime is 66584260319. The reversal of 66584260302 is 20306248566.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 235774 + ... + 434462.

It is an arithmetic number, because the mean of its divisors is an integer number (2431965600).

Almost surely, 2^66584260302 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66584260302, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77822899200).

66584260302 is an abundant number, since it is smaller than the sum of its proper divisors (89061538098).

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

66584260302 is a wasteful number, since it uses less digits than its factorization.

66584260302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198881.

The product of its (nonzero) digits is 414720, while the sum is 42.

The spelling of 66584260302 in words is "sixty-six billion, five hundred eighty-four million, two hundred sixty thousand, three hundred two".