13065561465 has 32 divisors (see below), whose sum is σ = 22941950976. Its totient is φ = 6296871360.

The previous prime is 13065561407. The next prime is 13065561473. The reversal of 13065561465 is 56416556031.

It is not a de Polignac number, because 13065561465 - 2⁸ = 13065561209 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 209527 + ... + 264636.

It is an arithmetic number, because the mean of its divisors is an integer number (716935968).

Almost surely, 2^13065561465 is an apocalyptic number.

13065561465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13065561465 is a deficient number, since it is larger than the sum of its proper divisors (9876389511).

13065561465 is a wasteful number, since it uses less digits than its factorization.

13065561465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474349.

The product of its (nonzero) digits is 324000, while the sum is 42.

The spelling of 13065561465 in words is "thirteen billion, sixty-five million, five hundred sixty-one thousand, four hundred sixty-five".