61005605605110 has 96 divisors (see below), whose sum is σ = 164207702355840. Its totient is φ = 15695352900864.

The previous prime is 61005605605099. The next prime is 61005605605111. The reversal of 61005605605110 is 1150650650016.

It is a super-2 number, since 2×61005605605110² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61005605605111) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5343537 + ... + 12270476.

It is an arithmetic number, because the mean of its divisors is an integer number (1710496899540).

Almost surely, 2^{61005605605110} is an apocalyptic number.

61005605605110 is an abundant number, since it is smaller than the sum of its proper divisors (103202096750730).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61005605605110 is a wasteful number, since it uses less digits than its factorization.

61005605605110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17615382 (or 17615379 counting only the distinct ones).

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

The spelling of 61005605605110 in words is "sixty-one trillion, five billion, six hundred five million, six hundred five thousand, one hundred ten".