16731242207 has 4 divisors (see below), whose sum is σ = 16738579536. Its totient is φ = 16723904880.

The previous prime is 16731242183. The next prime is 16731242263. The reversal of 16731242207 is 70224213761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70224213761 = 13 ⋅5401862597.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16731242207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16731242267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3665243 + ... + 3669804.

It is an arithmetic number, because the mean of its divisors is an integer number (4184644884).

Almost surely, 2^16731242207 is an apocalyptic number.

16731242207 is a deficient number, since it is larger than the sum of its proper divisors (7337329).

16731242207 is an equidigital number, since it uses as much as digits as its factorization.

16731242207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7337328.

The product of its (nonzero) digits is 28224, while the sum is 35.

Adding to 16731242207 its reverse (70224213761), we get a palindrome (86955455968).

The spelling of 16731242207 in words is "sixteen billion, seven hundred thirty-one million, two hundred forty-two thousand, two hundred seven".