16541428712 has 8 divisors (see below), whose sum is σ = 31015178850. Its totient is φ = 8270714352.

The previous prime is 16541428711. The next prime is 16541428733. The reversal of 16541428712 is 21782414561.

It can be written as a sum of positive squares in only one way, i.e., 15827149636 + 714279076 = 125806^2 + 26726^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 16541428712.

It is not an unprimeable number, because it can be changed into a prime (16541428711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1033839287 + ... + 1033839302.

Almost surely, 2^16541428712 is an apocalyptic number.

It is an amenable number.

16541428712 is a deficient number, since it is larger than the sum of its proper divisors (14473750138).

16541428712 is a wasteful number, since it uses less digits than its factorization.

16541428712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2067678595 (or 2067678591 counting only the distinct ones).

The product of its digits is 107520, while the sum is 41.

The spelling of 16541428712 in words is "sixteen billion, five hundred forty-one million, four hundred twenty-eight thousand, seven hundred twelve".