131217080216 has 64 divisors (see below), whose sum is σ = 257237640000. Its totient is φ = 62670537216.

The previous prime is 131217080207. The next prime is 131217080227. The reversal of 131217080216 is 612080712131.

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, 18532565 + ... + 18539643.

It is an arithmetic number, because the mean of its divisors is an integer number (4019338125).

Almost surely, 2^131217080216 is an apocalyptic number.

It is an amenable number.

131217080216 is a deficient number, since it is larger than the sum of its proper divisors (126020559784).

131217080216 is a wasteful number, since it uses less digits than its factorization.

131217080216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7956 (or 7952 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 32.

Adding to 131217080216 its reverse (612080712131), we get a palindrome (743297792347).

The spelling of 131217080216 in words is "one hundred thirty-one billion, two hundred seventeen million, eighty thousand, two hundred sixteen".