11401442515215 has 24 divisors (see below), whose sum is σ = 19795383102768. Its totient is φ = 6070651574400.

The previous prime is 11401442515213. The next prime is 11401442515231. The reversal of 11401442515215 is 51251524410411.

11401442515215 is a `hidden beast` number, since 1 + 1 + 4 + 0 + 1 + 4 + 425 + 15 + 215 = 666.

It is not a de Polignac number, because 11401442515215 - 2¹ = 11401442515213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11401442515215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11401442515213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 210759469 + ... + 210813558.

It is an arithmetic number, because the mean of its divisors is an integer number (824807629282).

Almost surely, 2^{11401442515215} is an apocalyptic number.

11401442515215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11401442515215 is a deficient number, since it is larger than the sum of its proper divisors (8393940587553).

11401442515215 is a wasteful number, since it uses less digits than its factorization.

11401442515215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421573639 (or 421573636 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 36.

Adding to 11401442515215 its reverse (51251524410411), we get a palindrome (62652966925626).

The spelling of 11401442515215 in words is "eleven trillion, four hundred one billion, four hundred forty-two million, five hundred fifteen thousand, two hundred fifteen".