13601521465 has 16 divisors (see below), whose sum is σ = 18703542528. Its totient is φ = 9301743936.

The previous prime is 13601521463. The next prime is 13601521481. The reversal of 13601521465 is 56412510631.

It is a cyclic number.

It is not a de Polignac number, because 13601521465 - 2¹ = 13601521463 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13601521465.

It is not an unprimeable number, because it can be changed into a prime (13601521463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 507877 + ... + 533986.

It is an arithmetic number, because the mean of its divisors is an integer number (1168971408).

Almost surely, 2^13601521465 is an apocalyptic number.

It is an amenable number.

13601521465 is a deficient number, since it is larger than the sum of its proper divisors (5102021063).

13601521465 is a wasteful number, since it uses less digits than its factorization.

13601521465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042248.

The product of its (nonzero) digits is 21600, while the sum is 34.

The spelling of 13601521465 in words is "thirteen billion, six hundred one million, five hundred twenty-one thousand, four hundred sixty-five".