11442402155 has 24 divisors (see below), whose sum is σ = 14219312832. Its totient is φ = 8835462144.

The previous prime is 11442402119. The next prime is 11442402187. The reversal of 11442402155 is 55120424411.

It is a happy number.

It is not a de Polignac number, because 11442402155 - 2¹⁴ = 11442385771 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1247747 + ... + 1256883.

It is an arithmetic number, because the mean of its divisors is an integer number (592471368).

Almost surely, 2^11442402155 is an apocalyptic number.

11442402155 is a deficient number, since it is larger than the sum of its proper divisors (2776910677).

11442402155 is an frugal number, since it uses more digits than its factorization.

11442402155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9335 (or 9262 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 29.

Adding to 11442402155 its reverse (55120424411), we get a palindrome (66562826566).

The spelling of 11442402155 in words is "eleven billion, four hundred forty-two million, four hundred two thousand, one hundred fifty-five".