655535320611 has 16 divisors (see below), whose sum is σ = 896347803648. Its totient is φ = 425950358400.

The previous prime is 655535320607. The next prime is 655535320669. The reversal of 655535320611 is 116023535556.

It is not a de Polignac number, because 655535320611 - 2² = 655535320607 is a prime.

It is a super-2 number, since 2×655535320611² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (655535320691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9611635 + ... + 9679596.

It is an arithmetic number, because the mean of its divisors is an integer number (56021737728).

Almost surely, 2^655535320611 is an apocalyptic number.

655535320611 is a deficient number, since it is larger than the sum of its proper divisors (240812483037).

655535320611 is a wasteful number, since it uses less digits than its factorization.

655535320611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19291522.

The product of its (nonzero) digits is 405000, while the sum is 42.

The spelling of 655535320611 in words is "six hundred fifty-five billion, five hundred thirty-five million, three hundred twenty thousand, six hundred eleven".