16851607368 has 32 divisors (see below), whose sum is σ = 42923908800. Its totient is φ = 5511217088.

The previous prime is 16851607351. The next prime is 16851607369. The reversal of 16851607368 is 86370615861.

It is a self number, because there is not a number n which added to its sum of digits gives 16851607368.

It is not an unprimeable number, because it can be changed into a prime (16851607369) 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, 6622788 + ... + 6625331.

It is an arithmetic number, because the mean of its divisors is an integer number (1341372150).

Almost surely, 2^16851607368 is an apocalyptic number.

It is an amenable number.

16851607368 is an abundant number, since it is smaller than the sum of its proper divisors (26072301432).

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

16851607368 is a wasteful number, since it uses less digits than its factorization.

16851607368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13248181 (or 13248177 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 51.

The spelling of 16851607368 in words is "sixteen billion, eight hundred fifty-one million, six hundred seven thousand, three hundred sixty-eight".