13521106646 has 32 divisors (see below), whose sum is σ = 21587689728. Its totient is φ = 6337758240.

The previous prime is 13521106589. The next prime is 13521106679. The reversal of 13521106646 is 64660112531.

It is a super-3 number, since 3×13521106646³ (a number of 31 digits) contains 333 as substring.

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, 785585 + ... + 802611.

It is an arithmetic number, because the mean of its divisors is an integer number (674615304).

Almost surely, 2^13521106646 is an apocalyptic number.

13521106646 is a deficient number, since it is larger than the sum of its proper divisors (8066583082).

13521106646 is a wasteful number, since it uses less digits than its factorization.

13521106646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17396.

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 13521106646 in words is "thirteen billion, five hundred twenty-one million, one hundred six thousand, six hundred forty-six".