12662535406 has 8 divisors (see below), whose sum is σ = 19007061984. Its totient is φ = 6326848080.

The previous prime is 12662535349. The next prime is 12662535421. The reversal of 12662535406 is 60453526621.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2206230 + ... + 2211961.

It is an arithmetic number, because the mean of its divisors is an integer number (2375882748).

Almost surely, 2^12662535406 is an apocalyptic number.

12662535406 is a deficient number, since it is larger than the sum of its proper divisors (6344526578).

12662535406 is a wasteful number, since it uses less digits than its factorization.

12662535406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4419626.

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 12662535406 in words is "twelve billion, six hundred sixty-two million, five hundred thirty-five thousand, four hundred six".