41561205664220 has 48 divisors (see below), whose sum is σ = 95213448038016. Its totient is φ = 15113085672000.

The previous prime is 41561205664219. The next prime is 41561205664241. The reversal of 41561205664220 is 2246650216514.

It is a super-2 number, since 2×41561205664220² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55218215 + ... + 55965825.

It is an arithmetic number, because the mean of its divisors is an integer number (1983613500792).

Almost surely, 2^{41561205664220} is an apocalyptic number.

It is an amenable number.

41561205664220 is an abundant number, since it is smaller than the sum of its proper divisors (53652242373796).

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

41561205664220 is a wasteful number, since it uses less digits than its factorization.

41561205664220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000322 (or 1000320 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 44.

The spelling of 41561205664220 in words is "forty-one trillion, five hundred sixty-one billion, two hundred five million, six hundred sixty-four thousand, two hundred twenty".