1628166523528 has 64 divisors (see below), whose sum is σ = 3288689838720. Its totient is φ = 752964326400.

The previous prime is 1628166523519. The next prime is 1628166523559. The reversal of 1628166523528 is 8253256618261.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1391418 + ... + 2278678.

It is an arithmetic number, because the mean of its divisors is an integer number (51385778730).

Almost surely, 2^{1628166523528} is an apocalyptic number.

It is an amenable number.

1628166523528 is an abundant number, since it is smaller than the sum of its proper divisors (1660523315192).

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

1628166523528 is a wasteful number, since it uses less digits than its factorization.

1628166523528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887518 (or 887514 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 55.

The spelling of 1628166523528 in words is "one trillion, six hundred twenty-eight billion, one hundred sixty-six million, five hundred twenty-three thousand, five hundred twenty-eight".