31660216041 has 4 divisors (see below), whose sum is σ = 42213621392. Its totient is φ = 21106810692.

The previous prime is 31660216019. The next prime is 31660216061. The reversal of 31660216041 is 14061206613.

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 not a de Polignac number, because 31660216041 - 2⁵ = 31660216009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31660216001) 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, 5276702671 + ... + 5276702676.

It is an arithmetic number, because the mean of its divisors is an integer number (10553405348).

Almost surely, 2^31660216041 is an apocalyptic number.

It is an amenable number.

31660216041 is a deficient number, since it is larger than the sum of its proper divisors (10553405351).

31660216041 is a wasteful number, since it uses less digits than its factorization.

31660216041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10553405350.

The product of its (nonzero) digits is 5184, while the sum is 30.

The spelling of 31660216041 in words is "thirty-one billion, six hundred sixty million, two hundred sixteen thousand, forty-one".