116571666212 has 48 divisors (see below), whose sum is σ = 223509630960. Its totient is φ = 52951191552.

The previous prime is 116571666209. The next prime is 116571666221. The reversal of 116571666212 is 212666175611.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 31479275776 + 85092390436 = 177424^2 + 291706^2 .

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, 11142488 + ... + 11152944.

It is an arithmetic number, because the mean of its divisors is an integer number (4656450645).

Almost surely, 2^116571666212 is an apocalyptic number.

It is an amenable number.

116571666212 is a deficient number, since it is larger than the sum of its proper divisors (106937964748).

116571666212 is a wasteful number, since it uses less digits than its factorization.

116571666212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16160 (or 16158 counting only the distinct ones).

The product of its digits is 181440, while the sum is 44.

The spelling of 116571666212 in words is "one hundred sixteen billion, five hundred seventy-one million, six hundred sixty-six thousand, two hundred twelve".