41676661561 has 4 divisors (see below), whose sum is σ = 41677612624. Its totient is φ = 41675710500.

The previous prime is 41676661517. The next prime is 41676661577. The reversal of 41676661561 is 16516667614.

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 41676661561 - 2¹⁵ = 41676628793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41676361561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 406455 + ... + 498556.

It is an arithmetic number, because the mean of its divisors is an integer number (10419403156).

Almost surely, 2^41676661561 is an apocalyptic number.

It is an amenable number.

41676661561 is a deficient number, since it is larger than the sum of its proper divisors (951063).

41676661561 is an equidigital number, since it uses as much as digits as its factorization.

41676661561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 951062.

The product of its digits is 1088640, while the sum is 49.

The spelling of 41676661561 in words is "forty-one billion, six hundred seventy-six million, six hundred sixty-one thousand, five hundred sixty-one".