13006556465 has 16 divisors (see below), whose sum is σ = 18613110528. Its totient is φ = 8531007936.

The previous prime is 13006556449. The next prime is 13006556473. The reversal of 13006556465 is 56465560031.

It is a cyclic number.

It is not a de Polignac number, because 13006556465 - 2⁴ = 13006556449 is a prime.

It is a super-2 number, since 2×13006556465² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8077802 + ... + 8079411.

It is an arithmetic number, because the mean of its divisors is an integer number (1163319408).

Almost surely, 2^13006556465 is an apocalyptic number.

It is an amenable number.

13006556465 is a deficient number, since it is larger than the sum of its proper divisors (5606554063).

13006556465 is a wasteful number, since it uses less digits than its factorization.

13006556465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16157248.

The product of its (nonzero) digits is 324000, while the sum is 41.

The spelling of 13006556465 in words is "thirteen billion, six million, five hundred fifty-six thousand, four hundred sixty-five".