655970288111 has 4 divisors (see below), whose sum is σ = 656690344224. Its totient is φ = 655250232000.

The previous prime is 655970288101. The next prime is 655970288137. The reversal of 655970288111 is 111882079556.

655970288111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 655970288111 - 2¹⁰ = 655970287087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655970288101) 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, 360026690 + ... + 360028511.

It is an arithmetic number, because the mean of its divisors is an integer number (164172586056).

Almost surely, 2^655970288111 is an apocalyptic number.

655970288111 is a deficient number, since it is larger than the sum of its proper divisors (720056113).

655970288111 is an equidigital number, since it uses as much as digits as its factorization.

655970288111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720056112.

The product of its (nonzero) digits is 1209600, while the sum is 53.

The spelling of 655970288111 in words is "six hundred fifty-five billion, nine hundred seventy million, two hundred eighty-eight thousand, one hundred eleven".