6641363163412 has 12 divisors (see below), whose sum is σ = 11672267020596. Its totient is φ = 3306429728960.

The previous prime is 6641363163401. The next prime is 6641363163437. The reversal of 6641363163412 is 2143613631466.

It can be written as a sum of positive squares in 2 ways, for example, as 1580240069776 + 5061123093636 = 1257076^2 + 2249694^2 .

It is a super-4 number, since 4×6641363163412⁴ (a number of 52 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3562962139 + ... + 3562964002.

It is an arithmetic number, because the mean of its divisors is an integer number (972688918383).

Almost surely, 2^{6641363163412} is an apocalyptic number.

It is an amenable number.

6641363163412 is a deficient number, since it is larger than the sum of its proper divisors (5030903857184).

6641363163412 is a wasteful number, since it uses less digits than its factorization.

6641363163412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7125926378 (or 7125926376 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 46.

Adding to 6641363163412 its reverse (2143613631466), we get a palindrome (8784976794878).

The spelling of 6641363163412 in words is "six trillion, six hundred forty-one billion, three hundred sixty-three million, one hundred sixty-three thousand, four hundred twelve".