14521540564 has 6 divisors (see below), whose sum is σ = 25412695994. Its totient is φ = 7260770280.

The previous prime is 14521540559. The next prime is 14521540577. The reversal of 14521540564 is 46504512541.

It can be written as a sum of positive squares in only one way, i.e., 9692402500 + 4829138064 = 98450^2 + 69492^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1815192567 + ... + 1815192574.

Almost surely, 2^14521540564 is an apocalyptic number.

It is an amenable number.

14521540564 is a deficient number, since it is larger than the sum of its proper divisors (10891155430).

14521540564 is a wasteful number, since it uses less digits than its factorization.

14521540564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3630385145 (or 3630385143 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 37.

The spelling of 14521540564 in words is "fourteen billion, five hundred twenty-one million, five hundred forty thousand, five hundred sixty-four".