61206562556244 has 432 divisors, whose sum is σ = 195467173574400. Its totient is φ = 16048810132992.

The previous prime is 61206562556233. The next prime is 61206562556329. The reversal of 61206562556244 is 44265526560216.

61206562556244 is a `hidden beast` number, since 6 + 1 + 2 + 0 + 6 + 5 + 6 + 2 + 5 + 5 + 624 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 140113414 + ... + 140549570.

It is an arithmetic number, because the mean of its divisors is an integer number (452470309200).

Almost surely, 2^{61206562556244} 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 61206562556244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97733586787200).

61206562556244 is an abundant number, since it is smaller than the sum of its proper divisors (134260611018156).

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

61206562556244 is a wasteful number, since it uses less digits than its factorization.

61206562556244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436332 (or 436320 counting only the distinct ones).

The product of its (nonzero) digits is 20736000, while the sum is 54.

The spelling of 61206562556244 in words is "sixty-one trillion, two hundred six billion, five hundred sixty-two million, five hundred fifty-six thousand, two hundred forty-four".