12662006406 has 24 divisors (see below), whose sum is σ = 29458546200. Its totient is φ = 3617716032.

The previous prime is 12662006387. The next prime is 12662006407. The reversal of 12662006406 is 60460026621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12662006407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21533731 + ... + 21534318.

It is an arithmetic number, because the mean of its divisors is an integer number (1227439425).

Almost surely, 2^12662006406 is an apocalyptic number.

12662006406 is an abundant number, since it is smaller than the sum of its proper divisors (16796539794).

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

12662006406 is a wasteful number, since it uses less digits than its factorization.

12662006406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43068068 (or 43068061 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The spelling of 12662006406 in words is "twelve billion, six hundred sixty-two million, six thousand, four hundred six".