8664190001 has 4 divisors (see below), whose sum is σ = 8664380004. Its totient is φ = 8664000000.

The previous prime is 8664189983. The next prime is 8664190009. The reversal of 8664190001 is 1000914668.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6184249600 + 2479940401 = 78640^2 + 49799^2 .

It is a cyclic number.

It is not a de Polignac number, because 8664190001 - 2²² = 8659995697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8664190009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19001 + ... + 133001.

It is an arithmetic number, because the mean of its divisors is an integer number (2166095001).

It is a Poulet number, since it divides 2^8664190000-1.

Almost surely, 2^8664190001 is an apocalyptic number.

8664190001 is the 76001-st pentagonal number.

It is an amenable number.

8664190001 is a deficient number, since it is larger than the sum of its proper divisors (190003).

8664190001 is a wasteful number, since it uses less digits than its factorization.

8664190001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190002.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 8664190001 is about 93081.6308462631. The cubic root of 8664190001 is about 2053.8843663956.

The spelling of 8664190001 in words is "eight billion, six hundred sixty-four million, one hundred ninety thousand, one".