11406431646 has 24 divisors (see below), whose sum is σ = 24721537464. Its totient is φ = 3800974320.

The previous prime is 11406431627. The next prime is 11406431651. The reversal of 11406431646 is 64613460411.

11406431646 is a `hidden beast` number, since 1 + 1 + 4 + 0 + 6 + 4 + 3 + 1 + 646 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 11406431646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36285 + ... + 155336.

It is an arithmetic number, because the mean of its divisors is an integer number (1030064061).

Almost surely, 2^11406431646 is an apocalyptic number.

11406431646 is an abundant number, since it is smaller than the sum of its proper divisors (13315105818).

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

11406431646 is a wasteful number, since it uses less digits than its factorization.

11406431646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194936 (or 194933 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The spelling of 11406431646 in words is "eleven billion, four hundred six million, four hundred thirty-one thousand, six hundred forty-six".