13669616 has 10 divisors (see below), whose sum is σ = 26484912. Its totient is φ = 6834800.

The previous prime is 13669609. The next prime is 13669627. The reversal of 13669616 is 61696631.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 13669616.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427160 + ... + 427191.

Almost surely, 2^13669616 is an apocalyptic number.

13669616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13669616 is a deficient number, since it is larger than the sum of its proper divisors (12815296).

13669616 is an equidigital number, since it uses as much as digits as its factorization.

13669616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854359 (or 854353 counting only the distinct ones).

The product of its digits is 34992, while the sum is 38.

The square root of 13669616 is about 3697.2443792641. The cubic root of 13669616 is about 239.1032274098.

It can be divided in two parts, 136 and 69616, that multiplied together give a triangular number (9467776 = T₄₃₅₁).

The spelling of 13669616 in words is "thirteen million, six hundred sixty-nine thousand, six hundred sixteen".