146664811 has 4 divisors (see below), whose sum is σ = 148673992. Its totient is φ = 144655632.

The previous prime is 146664779. The next prime is 146664821. The reversal of 146664811 is 118466641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 118466641 = 5641 ⋅21001.

It is not a de Polignac number, because 146664811 - 2⁵ = 146664779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146664821) 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, 1004481 + ... + 1004626.

It is an arithmetic number, because the mean of its divisors is an integer number (37168498).

Almost surely, 2^146664811 is an apocalyptic number.

146664811 is a deficient number, since it is larger than the sum of its proper divisors (2009181).

146664811 is an equidigital number, since it uses as much as digits as its factorization.

146664811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2009180.

The product of its digits is 27648, while the sum is 37.

The square root of 146664811 is about 12110.5248028316. The cubic root of 146664811 is about 527.3617687706.

The spelling of 146664811 in words is "one hundred forty-six million, six hundred sixty-four thousand, eight hundred eleven".