12531601466 has 8 divisors (see below), whose sum is σ = 18811571520. Its totient is φ = 6261077628.

The previous prime is 12531601463. The next prime is 12531601471. The reversal of 12531601466 is 66410613521.

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 (12531601463) 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, 2358236 + ... + 2363543.

It is an arithmetic number, because the mean of its divisors is an integer number (2351446440).

Almost surely, 2^12531601466 is an apocalyptic number.

12531601466 is a deficient number, since it is larger than the sum of its proper divisors (6279970054).

12531601466 is a wasteful number, since it uses less digits than its factorization.

12531601466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4723108.

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 12531601466 in words is "twelve billion, five hundred thirty-one million, six hundred one thousand, four hundred sixty-six".