13330346646 has 32 divisors (see below), whose sum is σ = 28917489888. Its totient is φ = 4080066560.

The previous prime is 13330346639. The next prime is 13330346657. The reversal of 13330346646 is 64664303331.

13330346646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×13330346646³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1589595 + ... + 1597958.

It is an arithmetic number, because the mean of its divisors is an integer number (903671559).

Almost surely, 2^13330346646 is an apocalyptic number.

13330346646 is an abundant number, since it is smaller than the sum of its proper divisors (15587143242).

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

13330346646 is a wasteful number, since it uses less digits than its factorization.

13330346646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3187616.

The product of its (nonzero) digits is 279936, while the sum is 39.

Adding to 13330346646 its reverse (64664303331), we get a palindrome (77994649977).

It can be divided in two parts, 13330 and 346646, that added together give a triangular number (359976 = T₈₄₈).

The spelling of 13330346646 in words is "thirteen billion, three hundred thirty million, three hundred forty-six thousand, six hundred forty-six".