655592541681 has 16 divisors (see below), whose sum is σ = 1089816173568. Its totient is φ = 340567554000.

The previous prime is 655592541671. The next prime is 655592541707. The reversal of 655592541681 is 186145295556.

It is not a de Polignac number, because 655592541681 - 2⁹ = 655592541169 is a prime.

It is a super-2 number, since 2×655592541681² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (655592541671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1419031245 + ... + 1419031706.

It is an arithmetic number, because the mean of its divisors is an integer number (68113510848).

Almost surely, 2^655592541681 is an apocalyptic number.

It is an amenable number.

655592541681 is a deficient number, since it is larger than the sum of its proper divisors (434223631887).

655592541681 is a wasteful number, since it uses less digits than its factorization.

655592541681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2838062972.

The product of its digits is 12960000, while the sum is 57.

The spelling of 655592541681 in words is "six hundred fifty-five billion, five hundred ninety-two million, five hundred forty-one thousand, six hundred eighty-one".