611006055561 has 24 divisors (see below), whose sum is σ = 986280291360. Its totient is φ = 361274827200.

The previous prime is 611006055559. The next prime is 611006055631. The reversal of 611006055561 is 165550600116.

It is not a de Polignac number, because 611006055561 - 2¹ = 611006055559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (611006055061) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75261531 + ... + 75269648.

It is an arithmetic number, because the mean of its divisors is an integer number (41095012140).

Almost surely, 2^611006055561 is an apocalyptic number.

It is an amenable number.

611006055561 is a deficient number, since it is larger than the sum of its proper divisors (375274235799).

611006055561 is a wasteful number, since it uses less digits than its factorization.

611006055561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150531237 (or 150531234 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

Adding to 611006055561 its reverse (165550600116), we get a palindrome (776556655677).

The spelling of 611006055561 in words is "six hundred eleven billion, six million, fifty-five thousand, five hundred sixty-one".