149682666 has 48 divisors (see below), whose sum is σ = 357706944. Its totient is φ = 40900992.

The previous prime is 149682661. The next prime is 149682667. The reversal of 149682666 is 666286941.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (149682661) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18850 + ... + 25586.

It is an arithmetic number, because the mean of its divisors is an integer number (7452228).

Almost surely, 2^149682666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149682666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178853472).

149682666 is an abundant number, since it is smaller than the sum of its proper divisors (208024278).

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

149682666 is a wasteful number, since it uses less digits than its factorization.

149682666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6795 (or 6772 counting only the distinct ones).

The product of its digits is 746496, while the sum is 48.

The square root of 149682666 is about 12234.4867485318. The cubic root of 149682666 is about 530.9543337294.

The spelling of 149682666 in words is "one hundred forty-nine million, six hundred eighty-two thousand, six hundred sixty-six".