61105943497236 has 96 divisors (see below), whose sum is σ = 158882394101760. Its totient is φ = 18119486112000.

The previous prime is 61105943497171. The next prime is 61105943497237. The reversal of 61105943497236 is 63279434950116.

61105943497236 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 61105943497236.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61105943497237) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31371211 + ... + 33262061.

It is an arithmetic number, because the mean of its divisors is an integer number (1655024938560).

Almost surely, 2^{61105943497236} is an apocalyptic number.

61105943497236 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61105943497236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79441197050880).

61105943497236 is an abundant number, since it is smaller than the sum of its proper divisors (97776450604524).

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

61105943497236 is a wasteful number, since it uses less digits than its factorization.

61105943497236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1896125 (or 1896123 counting only the distinct ones).

The product of its (nonzero) digits is 29393280, while the sum is 60.

The spelling of 61105943497236 in words is "sixty-one trillion, one hundred five billion, nine hundred forty-three million, four hundred ninety-seven thousand, two hundred thirty-six".