146664766 has 4 divisors (see below), whose sum is σ = 219997152. Its totient is φ = 73332382.

The previous prime is 146664761. The next prime is 146664773. The reversal of 146664766 is 667466641.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146664761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36666190 + ... + 36666193.

It is an arithmetic number, because the mean of its divisors is an integer number (54999288).

Almost surely, 2^146664766 is an apocalyptic number.

146664766 is a deficient number, since it is larger than the sum of its proper divisors (73332386).

146664766 is an equidigital number, since it uses as much as digits as its factorization.

146664766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73332385.

The product of its digits is 870912, while the sum is 46.

The square root of 146664766 is about 12110.5229449434. The cubic root of 146664766 is about 527.3617148352.

The spelling of 146664766 in words is "one hundred forty-six million, six hundred sixty-four thousand, seven hundred sixty-six".