207216507243 has 16 divisors (see below), whose sum is σ = 280758350240. Its totient is φ = 135918756864.

The previous prime is 207216507227. The next prime is 207216507247. The reversal of 207216507243 is 342705612702.

It is not a de Polignac number, because 207216507243 - 2⁴ = 207216507227 is a prime.

It is a super-2 number, since 2×207216507243² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (207216507247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1067146 + ... + 1246287.

It is an arithmetic number, because the mean of its divisors is an integer number (17547396890).

Almost surely, 2^207216507243 is an apocalyptic number.

207216507243 is a deficient number, since it is larger than the sum of its proper divisors (73541842997).

207216507243 is a wasteful number, since it uses less digits than its factorization.

207216507243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2313918.

The product of its (nonzero) digits is 141120, while the sum is 39.

The spelling of 207216507243 in words is "two hundred seven billion, two hundred sixteen million, five hundred seven thousand, two hundred forty-three".