16257776764 has 12 divisors (see below), whose sum is σ = 29220058504. Its totient is φ = 7909188624.

The previous prime is 16257776723. The next prime is 16257776767. The reversal of 16257776764 is 46767775261.

It is a hoax number, since the sum of its digits (58) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 16257776699 and 16257776708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16257776767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54924774 + ... + 54925069.

Almost surely, 2^16257776764 is an apocalyptic number.

It is an amenable number.

16257776764 is a deficient number, since it is larger than the sum of its proper divisors (12962281740).

16257776764 is a wasteful number, since it uses less digits than its factorization.

16257776764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109849884 (or 109849882 counting only the distinct ones).

The product of its digits is 20744640, while the sum is 58.

The spelling of 16257776764 in words is "sixteen billion, two hundred fifty-seven million, seven hundred seventy-six thousand, seven hundred sixty-four".