41531603566 has 4 divisors (see below), whose sum is σ = 62297405352. Its totient is φ = 20765801782.

The previous prime is 41531603521. The next prime is 41531603593. The reversal of 41531603566 is 66530613514.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10382900890 + ... + 10382900893.

It is an arithmetic number, because the mean of its divisors is an integer number (15574351338).

Almost surely, 2^41531603566 is an apocalyptic number.

41531603566 is a deficient number, since it is larger than the sum of its proper divisors (20765801786).

41531603566 is a wasteful number, since it uses less digits than its factorization.

41531603566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20765801785.

The product of its (nonzero) digits is 194400, while the sum is 40.

The spelling of 41531603566 in words is "forty-one billion, five hundred thirty-one million, six hundred three thousand, five hundred sixty-six".