1600448613538 has 8 divisors (see below), whose sum is σ = 2400826257180. Its totient is φ = 800173194480.

The previous prime is 1600448613529. The next prime is 1600448613541. The reversal of 1600448613538 is 8353168440061.

It can be written as a sum of positive squares in 2 ways, for example, as 998174833569 + 602273779969 = 999087^2 + 776063^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1600448613538² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1600448613491 and 1600448613500.

It is an unprimeable number.

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, 25516993 + ... + 25579636.

Almost surely, 2^{1600448613538} is an apocalyptic number.

1600448613538 is a deficient number, since it is larger than the sum of its proper divisors (800377643642).

1600448613538 is a wasteful number, since it uses less digits than its factorization.

1600448613538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51112292.

The product of its (nonzero) digits is 1658880, while the sum is 49.

The spelling of 1600448613538 in words is "one trillion, six hundred billion, four hundred forty-eight million, six hundred thirteen thousand, five hundred thirty-eight".