61256225334612 has 192 divisors, whose sum is σ = 184352503910400. Its totient is φ = 15361416913920.

The previous prime is 61256225334607. The next prime is 61256225334643. The reversal of 61256225334612 is 21643352265216.

It is a super-2 number, since 2×61256225334612² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1158177064 + ... + 1158229952.

It is an arithmetic number, because the mean of its divisors is an integer number (960169291200).

Almost surely, 2^{61256225334612} 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 61256225334612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92176251955200).

61256225334612 is an abundant number, since it is smaller than the sum of its proper divisors (123096278575788).

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

61256225334612 is a wasteful number, since it uses less digits than its factorization.

61256225334612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96166 (or 96164 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 48.

Adding to 61256225334612 its reverse (21643352265216), we get a palindrome (82899577599828).

The spelling of 61256225334612 in words is "sixty-one trillion, two hundred fifty-six billion, two hundred twenty-five million, three hundred thirty-four thousand, six hundred twelve".