41366354561 has 4 divisors (see below), whose sum is σ = 47275833792. Its totient is φ = 35456875332.

The previous prime is 41366354537. The next prime is 41366354563. The reversal of 41366354561 is 16545366314.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 41366354561 - 2¹⁰ = 41366353537 is a prime.

It is a super-2 number, since 2×41366354561² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41366354563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2954739605 + ... + 2954739618.

It is an arithmetic number, because the mean of its divisors is an integer number (11818958448).

Almost surely, 2^41366354561 is an apocalyptic number.

It is an amenable number.

41366354561 is a deficient number, since it is larger than the sum of its proper divisors (5909479231).

41366354561 is an equidigital number, since it uses as much as digits as its factorization.

41366354561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5909479230.

The product of its digits is 777600, while the sum is 44.

The spelling of 41366354561 in words is "forty-one billion, three hundred sixty-six million, three hundred fifty-four thousand, five hundred sixty-one".