16258878762864 has 20 divisors (see below), whose sum is σ = 42002103470856. Its totient is φ = 5419626254272.

The previous prime is 16258878762829. The next prime is 16258878762881. The reversal of 16258878762864 is 46826787885261.

16258878762864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×16258878762864² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16258878762864.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169363320399 + ... + 169363320494.

Almost surely, 2^{16258878762864} is an apocalyptic number.

It is an amenable number.

16258878762864 is an abundant number, since it is smaller than the sum of its proper divisors (25743224707992).

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

16258878762864 is a wasteful number, since it uses less digits than its factorization.

16258878762864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338726640904 (or 338726640898 counting only the distinct ones).

The product of its digits is 3468165120, while the sum is 78.

The spelling of 16258878762864 in words is "sixteen trillion, two hundred fifty-eight billion, eight hundred seventy-eight million, seven hundred sixty-two thousand, eight hundred sixty-four".