11401555244 has 12 divisors (see below), whose sum is σ = 19955974584. Its totient is φ = 5699848224.

The previous prime is 11401555229. The next prime is 11401555267. The reversal of 11401555244 is 44255510411.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 11401555244.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204374 + ... + 254109.

It is an arithmetic number, because the mean of its divisors is an integer number (1662997882).

Almost surely, 2^11401555244 is an apocalyptic number.

It is an amenable number.

11401555244 is a deficient number, since it is larger than the sum of its proper divisors (8554419340).

11401555244 is a wasteful number, since it uses less digits than its factorization.

11401555244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464704 (or 464702 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 32.

The spelling of 11401555244 in words is "eleven billion, four hundred one million, five hundred fifty-five thousand, two hundred forty-four".