66602831021202 has 32 divisors (see below), whose sum is σ = 152358110393472. Its totient is φ = 19013996784384.

The previous prime is 66602831021201. The next prime is 66602831021227. The reversal of 66602831021202 is 20212013820666.

It is not an unprimeable number, because it can be changed into a prime (66602831021201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 640926903 + ... + 641030810.

It is an arithmetic number, because the mean of its divisors is an integer number (4761190949796).

Almost surely, 2^{66602831021202} is an apocalyptic number.

66602831021202 is an abundant number, since it is smaller than the sum of its proper divisors (85755279372270).

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

66602831021202 is a wasteful number, since it uses less digits than its factorization.

66602831021202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281958962.

The product of its (nonzero) digits is 82944, while the sum is 39.

Adding to 66602831021202 its reverse (20212013820666), we get a palindrome (86814844841868).

The spelling of 66602831021202 in words is "sixty-six trillion, six hundred two billion, eight hundred thirty-one million, twenty-one thousand, two hundred two".