166501001006 has 4 divisors (see below), whose sum is σ = 249751501512. Its totient is φ = 83250500502.

The previous prime is 166501000997. The next prime is 166501001047. The reversal of 166501001006 is 600100105661.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41625250250 + ... + 41625250253.

It is an arithmetic number, because the mean of its divisors is an integer number (62437875378).

Almost surely, 2^166501001006 is an apocalyptic number.

166501001006 is a deficient number, since it is larger than the sum of its proper divisors (83250500506).

166501001006 is an equidigital number, since it uses as much as digits as its factorization.

166501001006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83250500505.

The product of its (nonzero) digits is 1080, while the sum is 26.

Adding to 166501001006 its reverse (600100105661), we get a palindrome (766601106667).

The spelling of 166501001006 in words is "one hundred sixty-six billion, five hundred one million, one thousand, six".