13665316626040 has 16 divisors (see below), whose sum is σ = 30746962408680. Its totient is φ = 5466126650400.

The previous prime is 13665316626019. The next prime is 13665316626089. The reversal of 13665316626040 is 4062661356631.

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, 170816457786 + ... + 170816457865.

Almost surely, 2^{13665316626040} is an apocalyptic number.

13665316626040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13665316626040 is an abundant number, since it is smaller than the sum of its proper divisors (17081645782640).

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

13665316626040 is a wasteful number, since it uses less digits than its factorization.

13665316626040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341632915662 (or 341632915658 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 49.

The spelling of 13665316626040 in words is "thirteen trillion, six hundred sixty-five billion, three hundred sixteen million, six hundred twenty-six thousand, forty".