13302220646 has 32 divisors (see below), whose sum is σ = 24013444896. Its totient is φ = 5445216000.

The previous prime is 13302220583. The next prime is 13302220681. The reversal of 13302220646 is 64602220331.

It is a super-2 number, since 2×13302220646² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 555485 + ... + 578936.

It is an arithmetic number, because the mean of its divisors is an integer number (750420153).

Almost surely, 2^13302220646 is an apocalyptic number.

13302220646 is a deficient number, since it is larger than the sum of its proper divisors (10711224250).

13302220646 is a wasteful number, since it uses less digits than its factorization.

13302220646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134488.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 13302220646 its reverse (64602220331), we get a palindrome (77904440977).

The spelling of 13302220646 in words is "thirteen billion, three hundred two million, two hundred twenty thousand, six hundred forty-six".