308143681466 has 8 divisors (see below), whose sum is σ = 462391077204. Its totient is φ = 154013322400.

The previous prime is 308143681463. The next prime is 308143681471. The reversal of 308143681466 is 664186341803.

It can be written as a sum of positive squares in 2 ways, for example, as 239345014441 + 68798667025 = 489229^2 + 262295^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (308143681463) 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, 29252585 + ... + 29263116.

Almost surely, 2^308143681466 is an apocalyptic number.

308143681466 is a deficient number, since it is larger than the sum of its proper divisors (154247395738).

308143681466 is a wasteful number, since it uses less digits than its factorization.

308143681466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58518336.

The product of its (nonzero) digits is 1990656, while the sum is 50.

The spelling of 308143681466 in words is "three hundred eight billion, one hundred forty-three million, six hundred eighty-one thousand, four hundred sixty-six".