12662433505 has 16 divisors (see below), whose sum is σ = 15262879104. Its totient is φ = 10084694400.

The previous prime is 12662433457. The next prime is 12662433559. The reversal of 12662433505 is 50533426621.

It is a de Polignac number, because none of the positive numbers 2^k-12662433505 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3123730 + ... + 3127780.

It is an arithmetic number, because the mean of its divisors is an integer number (953929944).

Almost surely, 2^12662433505 is an apocalyptic number.

It is an amenable number.

12662433505 is a deficient number, since it is larger than the sum of its proper divisors (2600445599).

12662433505 is a wasteful number, since it uses less digits than its factorization.

12662433505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6696.

The product of its (nonzero) digits is 129600, while the sum is 37.

The spelling of 12662433505 in words is "twelve billion, six hundred sixty-two million, four hundred thirty-three thousand, five hundred five".