16157648 has 20 divisors (see below), whose sum is σ = 33713988. Its totient is φ = 7457280.

The previous prime is 16157639. The next prime is 16157699. The reversal of 16157648 is 84675161.

It can be written as a sum of positive squares in 2 ways, for example, as 3139984 + 13017664 = 1772^2 + 3608^2 .

It is a super-2 number, since 2×16157648² = 522139177783808, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38633 + ... + 39048.

Almost surely, 2^16157648 is an apocalyptic number.

It is an amenable number.

16157648 is an abundant number, since it is smaller than the sum of its proper divisors (17556340).

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

16157648 is a wasteful number, since it uses less digits than its factorization.

16157648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77702 (or 77696 counting only the distinct ones).

The product of its digits is 40320, while the sum is 38.

The square root of 16157648 is about 4019.6576968692. The cubic root of 16157648 is about 252.8091067862.

The spelling of 16157648 in words is "sixteen million, one hundred fifty-seven thousand, six hundred forty-eight".