61061010663 has 8 divisors (see below), whose sum is σ = 83400404976. Its totient is φ = 39714478400.

The previous prime is 61061010611. The next prime is 61061010677. The reversal of 61061010663 is 36601016016.

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

It is a cyclic number.

It is not a de Polignac number, because 61061010663 - 2²⁴ = 61044233447 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61061010663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61061010683) 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 7 ways as a sum of consecutive naturals, for example, 248215368 + ... + 248215613.

It is an arithmetic number, because the mean of its divisors is an integer number (10425050622).

Almost surely, 2^61061010663 is an apocalyptic number.

61061010663 is a deficient number, since it is larger than the sum of its proper divisors (22339394313).

61061010663 is a wasteful number, since it uses less digits than its factorization.

61061010663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496431025.

The product of its (nonzero) digits is 3888, while the sum is 30.

Adding to 61061010663 its reverse (36601016016), we get a palindrome (97662026679).

The spelling of 61061010663 in words is "sixty-one billion, sixty-one million, ten thousand, six hundred sixty-three".