61333901760 has 224 divisors, whose sum is σ = 201548390400. Its totient is φ = 15786270720.

The previous prime is 61333901747. The next prime is 61333901773. The reversal of 61333901760 is 6710933316.

It is an interprime number because it is at equal distance from previous prime (61333901747) and next prime (61333901773).

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, 12169321 + ... + 12174359.

It is an arithmetic number, because the mean of its divisors is an integer number (899769600).

Almost surely, 2^61333901760 is an apocalyptic number.

61333901760 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61333901760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100774195200).

61333901760 is an abundant number, since it is smaller than the sum of its proper divisors (140214488640).

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

61333901760 is a wasteful number, since it uses less digits than its factorization.

61333901760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5499 (or 5489 counting only the distinct ones).

The product of its (nonzero) digits is 61236, while the sum is 39.

The spelling of 61333901760 in words is "sixty-one billion, three hundred thirty-three million, nine hundred one thousand, seven hundred sixty".