13155603465 has 32 divisors (see below), whose sum is σ = 21158496000. Its totient is φ = 6979911680.

The previous prime is 13155603451. The next prime is 13155603473. The reversal of 13155603465 is 56430655131.

It is not a de Polignac number, because 13155603465 - 2¹⁵ = 13155570697 is a prime.

It is a Curzon number.

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, 2415145 + ... + 2420585.

It is an arithmetic number, because the mean of its divisors is an integer number (661203000).

Almost surely, 2^13155603465 is an apocalyptic number.

13155603465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13155603465 is a deficient number, since it is larger than the sum of its proper divisors (8002892535).

13155603465 is a wasteful number, since it uses less digits than its factorization.

13155603465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6257.

The product of its (nonzero) digits is 162000, while the sum is 39.

The spelling of 13155603465 in words is "thirteen billion, one hundred fifty-five million, six hundred three thousand, four hundred sixty-five".