207216507242 has 8 divisors (see below), whose sum is σ = 315920248932. Its totient is φ = 101909757600.

The previous prime is 207216507227. The next prime is 207216507247. The reversal of 207216507242 is 242705612702.

It is a happy number.

207216507242 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 194788939801 + 12427567441 = 441349^2 + 111479^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 207216507196 and 207216507205.

It is not an unprimeable number, because it can be changed into a prime (207216507247) 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, 849247859 + ... + 849248102.

Almost surely, 2^207216507242 is an apocalyptic number.

207216507242 is a deficient number, since it is larger than the sum of its proper divisors (108703741690).

207216507242 is a wasteful number, since it uses less digits than its factorization.

207216507242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1698496024.

The product of its (nonzero) digits is 94080, while the sum is 38.

The spelling of 207216507242 in words is "two hundred seven billion, two hundred sixteen million, five hundred seven thousand, two hundred forty-two".