61200631240650 has 288 divisors, whose sum is σ = 187436979265536. Its totient is φ = 14723256600000.

The previous prime is 61200631240643. The next prime is 61200631240691. The reversal of 61200631240650 is 5604213600216.

61200631240650 is a `hidden beast` number, since 6 + 12 + 0 + 0 + 631 + 2 + 4 + 0 + 6 + 5 + 0 = 666.

It is a Curzon 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, 15760375 + ... + 19255925.

It is an arithmetic number, because the mean of its divisors is an integer number (650822844672).

Almost surely, 2^{61200631240650} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61200631240650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93718489632768).

61200631240650 is an abundant number, since it is smaller than the sum of its proper divisors (126236348024886).

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

61200631240650 is a wasteful number, since it uses less digits than its factorization.

61200631240650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3495720 (or 3495703 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

Adding to 61200631240650 its reverse (5604213600216), we get a palindrome (66804844840866).

The spelling of 61200631240650 in words is "sixty-one trillion, two hundred billion, six hundred thirty-one million, two hundred forty thousand, six hundred fifty".