1628136168 has 16 divisors (see below), whose sum is σ = 4070340480. Its totient is φ = 542712048.

The previous prime is 1628136149. The next prime is 1628136179. The reversal of 1628136168 is 8616318261.

It is a nude number because it is divisible by every one of its digits.

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, 33919480 + ... + 33919527.

It is an arithmetic number, because the mean of its divisors is an integer number (254396280).

Almost surely, 2^1628136168 is an apocalyptic number.

It is an amenable number.

1628136168 is an abundant number, since it is smaller than the sum of its proper divisors (2442204312).

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

1628136168 is a wasteful number, since it uses less digits than its factorization.

1628136168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67839016 (or 67839012 counting only the distinct ones).

The product of its digits is 82944, while the sum is 42.

The square root of 1628136168 is about 40350.1693676743. The cubic root of 1628136168 is about 1176.4231840401.

The spelling of 1628136168 in words is "one billion, six hundred twenty-eight million, one hundred thirty-six thousand, one hundred sixty-eight".