12001568406 has 64 divisors (see below), whose sum is σ = 25826549760. Its totient is φ = 3708825120.

The previous prime is 12001568401. The next prime is 12001568407. The reversal of 12001568406 is 60486510021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001568401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 769635 + ... + 785073.

It is an arithmetic number, because the mean of its divisors is an integer number (403539840).

Almost surely, 2^12001568406 is an apocalyptic number.

12001568406 is an abundant number, since it is smaller than the sum of its proper divisors (13824981354).

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

12001568406 is a wasteful number, since it uses less digits than its factorization.

12001568406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15641.

The product of its (nonzero) digits is 11520, while the sum is 33.

The spelling of 12001568406 in words is "twelve billion, one million, five hundred sixty-eight thousand, four hundred six".