16287861064 has 32 divisors (see below), whose sum is σ = 31476644640. Its totient is φ = 7896528000.

The previous prime is 16287861059. The next prime is 16287861067. The reversal of 16287861064 is 46016878261.

It is a junction number, because it is equal to n+sod(n) for n = 16287860999 and 16287861017.

It is not an unprimeable number, because it can be changed into a prime (16287861067) 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, 98862 + ... + 205789.

It is an arithmetic number, because the mean of its divisors is an integer number (983645145).

Almost surely, 2^16287861064 is an apocalyptic number.

It is an amenable number.

16287861064 is a deficient number, since it is larger than the sum of its proper divisors (15188783576).

16287861064 is a wasteful number, since it uses less digits than its factorization.

16287861064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304861 (or 304857 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 49.

The spelling of 16287861064 in words is "sixteen billion, two hundred eighty-seven million, eight hundred sixty-one thousand, sixty-four".