41661635456 has 64 divisors (see below), whose sum is σ = 94949604960. Its totient is φ = 17837107200.

The previous prime is 41661635443. The next prime is 41661635459. The reversal of 41661635456 is 65453616614.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 41661635456.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41661635459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 892046 + ... + 937586.

Almost surely, 2^41661635456 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 41661635456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47474802480).

41661635456 is an abundant number, since it is smaller than the sum of its proper divisors (53287969504).

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

41661635456 is a wasteful number, since it uses less digits than its factorization.

41661635456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46583 (or 46571 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 47.

The spelling of 41661635456 in words is "forty-one billion, six hundred sixty-one million, six hundred thirty-five thousand, four hundred fifty-six".