61541065573000 has 256 divisors, whose sum is σ = 156182733907200. Its totient is φ = 22696405804800.

The previous prime is 61541065572997. The next prime is 61541065573027. The reversal of 61541065573000 is 37556014516.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1939935139 + ... + 1939966861.

It is an arithmetic number, because the mean of its divisors is an integer number (610088804325).

Almost surely, 2^{61541065573000} 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 61541065573000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78091366953600).

61541065573000 is an abundant number, since it is smaller than the sum of its proper divisors (94641668334200).

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

61541065573000 is a wasteful number, since it uses less digits than its factorization.

61541065573000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32666 (or 32626 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 43.

The spelling of 61541065573000 in words is "sixty-one trillion, five hundred forty-one billion, sixty-five million, five hundred seventy-three thousand".