12007005406 has 8 divisors (see below), whose sum is σ = 19647827064. Its totient is φ = 5457729720.

The previous prime is 12007005379. The next prime is 12007005427. The reversal of 12007005406 is 60450070021.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 272886465 + ... + 272886508.

It is an arithmetic number, because the mean of its divisors is an integer number (2455978383).

Almost surely, 2^12007005406 is an apocalyptic number.

12007005406 is a deficient number, since it is larger than the sum of its proper divisors (7640821658).

12007005406 is a wasteful number, since it uses less digits than its factorization.

12007005406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545772986.

The product of its (nonzero) digits is 1680, while the sum is 25.

Adding to 12007005406 its reverse (60450070021), we get a palindrome (72457075427).

The spelling of 12007005406 in words is "twelve billion, seven million, five thousand, four hundred six".