655111516061 has 16 divisors (see below), whose sum is σ = 703265539824. Its totient is φ = 608028954624.

The previous prime is 655111516057. The next prime is 655111516093. The reversal of 655111516061 is 160615111556.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 12051867961 + 643059648100 = 109781^2 + 801910^2 .

It is a cyclic number.

It is not a de Polignac number, because 655111516061 - 2² = 655111516057 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 (655111516001) 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, 8091995 + ... + 8172551.

It is an arithmetic number, because the mean of its divisors is an integer number (43954096239).

Almost surely, 2^655111516061 is an apocalyptic number.

It is an amenable number.

655111516061 is a deficient number, since it is larger than the sum of its proper divisors (48154023763).

655111516061 is a wasteful number, since it uses less digits than its factorization.

655111516061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87200.

The product of its (nonzero) digits is 27000, while the sum is 38.

The spelling of 655111516061 in words is "six hundred fifty-five billion, one hundred eleven million, five hundred sixteen thousand, sixty-one".