1628000163564 has 12 divisors (see below), whose sum is σ = 3798667048344. Its totient is φ = 542666721184.

The previous prime is 1628000163547. The next prime is 1628000163571. The reversal of 1628000163564 is 4653610008261.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67833340137 + ... + 67833340160.

It is an arithmetic number, because the mean of its divisors is an integer number (316555587362).

Almost surely, 2^{1628000163564} is an apocalyptic number.

It is an amenable number.

1628000163564 is an abundant number, since it is smaller than the sum of its proper divisors (2170666884780).

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

1628000163564 is a wasteful number, since it uses less digits than its factorization.

1628000163564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135666680304 (or 135666680302 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 1628000163564 in words is "one trillion, six hundred twenty-eight billion, one hundred sixty-three thousand, five hundred sixty-four".