61301053236 has 96 divisors (see below), whose sum is σ = 153766045440. Its totient is φ = 18938214400.

The previous prime is 61301053211. The next prime is 61301053249. The reversal of 61301053236 is 63235010316.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15365530 + ... + 15369518.

It is an arithmetic number, because the mean of its divisors is an integer number (1601729640).

Almost surely, 2^61301053236 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 61301053236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76883022720).

61301053236 is an abundant number, since it is smaller than the sum of its proper divisors (92464992204).

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

61301053236 is a wasteful number, since it uses less digits than its factorization.

61301053236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5145 (or 5143 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 30.

The spelling of 61301053236 in words is "sixty-one billion, three hundred one million, fifty-three thousand, two hundred thirty-six".