655161655 has 8 divisors (see below), whose sum is σ = 799082784. Its totient is φ = 515536800.

The previous prime is 655161653. The next prime is 655161677. The reversal of 655161655 is 556161556.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 655161655 - 2¹ = 655161653 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 (655161653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1073731 + ... + 1074340.

It is an arithmetic number, because the mean of its divisors is an integer number (99885348).

Almost surely, 2^655161655 is an apocalyptic number.

655161655 is a deficient number, since it is larger than the sum of its proper divisors (143921129).

655161655 is a wasteful number, since it uses less digits than its factorization.

655161655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2148137.

The product of its digits is 135000, while the sum is 40.

The square root of 655161655 is about 25596.1257810630. The cubic root of 655161655 is about 868.5259996987.

Subtracting from 655161655 its reverse (556161556), we obtain a palindrome (99000099).

The spelling of 655161655 in words is "six hundred fifty-five million, one hundred sixty-one thousand, six hundred fifty-five".