655844087411 has 4 divisors (see below), whose sum is σ = 678459400800. Its totient is φ = 633228774024.

The previous prime is 655844087341. The next prime is 655844087417. The reversal of 655844087411 is 114780448556.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-655844087411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (655844087417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11307656651 + ... + 11307656708.

It is an arithmetic number, because the mean of its divisors is an integer number (169614850200).

Almost surely, 2^655844087411 is an apocalyptic number.

655844087411 is a deficient number, since it is larger than the sum of its proper divisors (22615313389).

655844087411 is a wasteful number, since it uses less digits than its factorization.

655844087411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22615313388.

The product of its (nonzero) digits is 4300800, while the sum is 53.

The spelling of 655844087411 in words is "six hundred fifty-five billion, eight hundred forty-four million, eighty-seven thousand, four hundred eleven".