71216202249 has 12 divisors (see below), whose sum is σ = 108281945200. Its totient is φ = 44978653944.

The previous prime is 71216202247. The next prime is 71216202259. The reversal of 71216202249 is 94220261217.

71216202249 is a `hidden beast` number, since 7 + 1 + 2 + 1 + 620 + 2 + 24 + 9 = 666.

It is not a de Polignac number, because 71216202249 - 2¹ = 71216202247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71216202247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 208234339 + ... + 208234680.

Almost surely, 2^71216202249 is an apocalyptic number.

It is an amenable number.

71216202249 is a deficient number, since it is larger than the sum of its proper divisors (37065742951).

71216202249 is a wasteful number, since it uses less digits than its factorization.

71216202249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416469044 (or 416469041 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 71216202249 in words is "seventy-one billion, two hundred sixteen million, two hundred two thousand, two hundred forty-nine".