41581741554 has 144 divisors (see below), whose sum is σ = 96161843232. Its totient is φ = 13480178112.

The previous prime is 41581741519. The next prime is 41581741573. The reversal of 41581741554 is 45514718514.

It is a happy number.

41581741554 is a `hidden beast` number, since 4 + 1 + 58 + 1 + 7 + 41 + 554 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 79505937 + ... + 79506459.

It is an arithmetic number, because the mean of its divisors is an integer number (667790578).

Almost surely, 2^41581741554 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 41581741554, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48080921616).

41581741554 is an abundant number, since it is smaller than the sum of its proper divisors (54580101678).

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

41581741554 is an frugal number, since it uses more digits than its factorization.

41581741554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705 (or 684 counting only the distinct ones).

The product of its digits is 448000, while the sum is 45.

The spelling of 41581741554 in words is "forty-one billion, five hundred eighty-one million, seven hundred forty-one thousand, five hundred fifty-four".