41001020660 has 24 divisors (see below), whose sum is σ = 86106168456. Its totient is φ = 16399641600.

The previous prime is 41001020653. The next prime is 41001020681. The reversal of 41001020660 is 6602010014.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 16099549456 + 24901471204 = 126884^2 + 157802^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 612860 + ... + 676460.

It is an arithmetic number, because the mean of its divisors is an integer number (3587757019).

Almost surely, 2^41001020660 is an apocalyptic number.

It is an amenable number.

41001020660 is an abundant number, since it is smaller than the sum of its proper divisors (45105147796).

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

41001020660 is a wasteful number, since it uses less digits than its factorization.

41001020660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95843 (or 95841 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 41001020660 its reverse (6602010014), we get a palindrome (47603030674).

The spelling of 41001020660 in words is "forty-one billion, one million, twenty thousand, six hundred sixty".