61071616907232 has 192 divisors, whose sum is σ = 165607920092160. Its totient is φ = 19691400167424.

The previous prime is 61071616907209. The next prime is 61071616907233. The reversal of 61071616907232 is 23270961617016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61071616907233) 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, 1068722053 + ... + 1068779195.

It is an arithmetic number, because the mean of its divisors is an integer number (862541250480).

Almost surely, 2^{61071616907232} 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 61071616907232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82803960046080).

61071616907232 is an abundant number, since it is smaller than the sum of its proper divisors (104536303184928).

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

61071616907232 is a wasteful number, since it uses less digits than its factorization.

61071616907232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58945 (or 58937 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 51.

The spelling of 61071616907232 in words is "sixty-one trillion, seventy-one billion, six hundred sixteen million, nine hundred seven thousand, two hundred thirty-two".