65655424131261 has 16 divisors (see below), whose sum is σ = 88065953958528. Its totient is φ = 43507595633600.

The previous prime is 65655424131247. The next prime is 65655424131277. The reversal of 65655424131261 is 16213142455656.

It is a cyclic number.

It is not a de Polignac number, because 65655424131261 - 2¹⁴ = 65655424114877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65655424131221) 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, 37798231 + ... + 39497051.

It is an arithmetic number, because the mean of its divisors is an integer number (5504122122408).

Almost surely, 2^{65655424131261} is an apocalyptic number.

It is an amenable number.

65655424131261 is a deficient number, since it is larger than the sum of its proper divisors (22410529827267).

65655424131261 is a wasteful number, since it uses less digits than its factorization.

65655424131261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1776132.

The product of its digits is 5184000, while the sum is 51.

The spelling of 65655424131261 in words is "sixty-five trillion, six hundred fifty-five billion, four hundred twenty-four million, one hundred thirty-one thousand, two hundred sixty-one".