11471440146 has 8 divisors (see below), whose sum is σ = 22942880304. Its totient is φ = 3823813380.

The previous prime is 11471440103. The next prime is 11471440237. The reversal of 11471440146 is 64104417411.

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

11471440146 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 955953340 + ... + 955953351.

It is an arithmetic number, because the mean of its divisors is an integer number (2867860038).

Almost surely, 2^11471440146 is an apocalyptic number.

11471440146 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11471440146 is a wasteful number, since it uses less digits than its factorization.

11471440146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1911906696.

The product of its (nonzero) digits is 10752, while the sum is 33.

Adding to 11471440146 its reverse (64104417411), we get a palindrome (75575857557).

The spelling of 11471440146 in words is "eleven billion, four hundred seventy-one million, four hundred forty thousand, one hundred forty-six".