166528587210 has 128 divisors (see below), whose sum is σ = 424385740800. Its totient is φ = 41756636160.

The previous prime is 166528587187. The next prime is 166528587217. The reversal of 166528587210 is 12785825661.

It is not an unprimeable number, because it can be changed into a prime (166528587217) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6061986 + ... + 6089394.

It is an arithmetic number, because the mean of its divisors is an integer number (3315513600).

Almost surely, 2^166528587210 is an apocalyptic number.

166528587210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 166528587210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212192870400).

166528587210 is an abundant number, since it is smaller than the sum of its proper divisors (257857153590).

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

166528587210 is a wasteful number, since it uses less digits than its factorization.

166528587210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27636.

The product of its (nonzero) digits is 1612800, while the sum is 51.

The spelling of 166528587210 in words is "one hundred sixty-six billion, five hundred twenty-eight million, five hundred eighty-seven thousand, two hundred ten".