16231202887 has 4 divisors (see below), whose sum is σ = 16231937976. Its totient is φ = 16230467800.

The previous prime is 16231202857. The next prime is 16231202891. The reversal of 16231202887 is 78820213261.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16231202887 - 2¹⁵ = 16231170119 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16231202807) 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, 333364 + ... + 378937.

It is an arithmetic number, because the mean of its divisors is an integer number (4057984494).

Almost surely, 2^16231202887 is an apocalyptic number.

16231202887 is a deficient number, since it is larger than the sum of its proper divisors (735089).

16231202887 is an equidigital number, since it uses as much as digits as its factorization.

16231202887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735088.

The product of its (nonzero) digits is 64512, while the sum is 40.

The spelling of 16231202887 in words is "sixteen billion, two hundred thirty-one million, two hundred two thousand, eight hundred eighty-seven".