61355075000 has 96 divisors (see below), whose sum is σ = 144752922720. Its totient is φ = 24378000000.

The previous prime is 61355074997. The next prime is 61355075017. The reversal of 61355075000 is 57055316.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3766874 + ... + 3783126.

It is an arithmetic number, because the mean of its divisors is an integer number (1507842945).

Almost surely, 2^61355075000 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 61355075000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72376461360).

61355075000 is an abundant number, since it is smaller than the sum of its proper divisors (83397847720).

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

61355075000 is a wasteful number, since it uses less digits than its factorization.

61355075000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16435 (or 16411 counting only the distinct ones).

The product of its (nonzero) digits is 15750, while the sum is 32.

The spelling of 61355075000 in words is "sixty-one billion, three hundred fifty-five million, seventy-five thousand".