65605605155013 has 128 divisors (see below), whose sum is σ = 116553592995840. Its totient is φ = 31839604312320.

The previous prime is 65605605155011. The next prime is 65605605155017. The reversal of 65605605155013 is 31055150650656.

It is not a de Polignac number, because 65605605155013 - 2¹ = 65605605155011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65605605155011) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 20170956 + ... + 23196522.

It is an arithmetic number, because the mean of its divisors is an integer number (910574945280).

Almost surely, 2^{65605605155013} is an apocalyptic number.

It is an amenable number.

65605605155013 is a deficient number, since it is larger than the sum of its proper divisors (50947987840827).

65605605155013 is a wasteful number, since it uses less digits than its factorization.

65605605155013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3025727.

The product of its (nonzero) digits is 2025000, while the sum is 48.

The spelling of 65605605155013 in words is "sixty-five trillion, six hundred five billion, six hundred five million, one hundred fifty-five thousand, thirteen".