2106571216 has 20 divisors (see below), whose sum is σ = 4085270272. Its totient is φ = 1052307936.

The previous prime is 2106571193. The next prime is 2106571217. The reversal of 2106571216 is 6121756012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2106571217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43170 + ... + 77953.

Almost surely, 2^2106571216 is an apocalyptic number.

It is an amenable number.

2106571216 is a deficient number, since it is larger than the sum of its proper divisors (1978699056).

2106571216 is a wasteful number, since it uses less digits than its factorization.

2106571216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122218 (or 122212 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 2106571216 is about 45897.3987933957. The cubic root of 2106571216 is about 1281.9134824950.

The spelling of 2106571216 in words is "two billion, one hundred six million, five hundred seventy-one thousand, two hundred sixteen".