61073043336 has 128 divisors (see below), whose sum is σ = 172174320000. Its totient is φ = 20055112704.

The previous prime is 61073043331. The next prime is 61073043379. The reversal of 61073043336 is 63334037016.

61073043336 is a `hidden beast` number, since 6 + 10 + 7 + 304 + 3 + 336 = 666.

61073043336 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 61073043336.

It is not an unprimeable number, because it can be changed into a prime (61073043331) 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, 17705740 + ... + 17709188.

It is an arithmetic number, because the mean of its divisors is an integer number (1345111875).

Almost surely, 2^61073043336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61073043336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86087160000).

61073043336 is an abundant number, since it is smaller than the sum of its proper divisors (111101276664).

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

61073043336 is a wasteful number, since it uses less digits than its factorization.

61073043336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4660 (or 4650 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 36.

The spelling of 61073043336 in words is "sixty-one billion, seventy-three million, forty-three thousand, three hundred thirty-six".