655461511 has 4 divisors (see below), whose sum is σ = 655693792. Its totient is φ = 655229232.

The previous prime is 655461497. The next prime is 655461523. The reversal of 655461511 is 115164556.

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 655461511 - 2¹³ = 655453319 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 (655491511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111855 + ... + 117568.

It is an arithmetic number, because the mean of its divisors is an integer number (163923448).

Almost surely, 2^655461511 is an apocalyptic number.

655461511 is a deficient number, since it is larger than the sum of its proper divisors (232281).

655461511 is a wasteful number, since it uses less digits than its factorization.

655461511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232280.

The product of its digits is 18000, while the sum is 34.

The square root of 655461511 is about 25601.9825599503. The cubic root of 655461511 is about 868.6584825287.

The spelling of 655461511 in words is "six hundred fifty-five million, four hundred sixty-one thousand, five hundred eleven".