16251770868 has 24 divisors (see below), whose sum is σ = 39228413280. Its totient is φ = 5230454880.

The previous prime is 16251770867. The next prime is 16251770917. The reversal of 16251770868 is 86807715261.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 16251770868.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16251770861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23349898 + ... + 23350593.

It is an arithmetic number, because the mean of its divisors is an integer number (1634517220).

Almost surely, 2^16251770868 is an apocalyptic number.

It is an amenable number.

16251770868 is an abundant number, since it is smaller than the sum of its proper divisors (22976642412).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16251770868 is a wasteful number, since it uses less digits than its factorization.

16251770868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46700527 (or 46700525 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 51.

The spelling of 16251770868 in words is "sixteen billion, two hundred fifty-one million, seven hundred seventy thousand, eight hundred sixty-eight".