646102363222 has 32 divisors (see below), whose sum is σ = 1105291440000. Its totient is φ = 281346887808.

The previous prime is 646102363219. The next prime is 646102363223. The reversal of 646102363222 is 222363201646.

It is a super-2 number, since 2×646102363222² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646102363223) 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, 11601972 + ... + 11657527.

It is an arithmetic number, because the mean of its divisors is an integer number (34540357500).

Almost surely, 2^646102363222 is an apocalyptic number.

646102363222 is a deficient number, since it is larger than the sum of its proper divisors (459189076778).

646102363222 is a wasteful number, since it uses less digits than its factorization.

646102363222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23259580.

The product of its (nonzero) digits is 124416, while the sum is 37.

Adding to 646102363222 its reverse (222363201646), we get a palindrome (868465564868).

The spelling of 646102363222 in words is "six hundred forty-six billion, one hundred two million, three hundred sixty-three thousand, two hundred twenty-two".