1115332511406 has 32 divisors (see below), whose sum is σ = 2237154134688. Its totient is φ = 370697518080.

The previous prime is 1115332511353. The next prime is 1115332511407. The reversal of 1115332511406 is 6041152335111.

It is a happy number.

It is a super-2 number, since 2×1115332511406² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115332511407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2730210 + ... + 3112026.

It is an arithmetic number, because the mean of its divisors is an integer number (69911066709).

Almost surely, 2^{1115332511406} is an apocalyptic number.

1115332511406 is an abundant number, since it is smaller than the sum of its proper divisors (1121821623282).

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

1115332511406 is a wasteful number, since it uses less digits than its factorization.

1115332511406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383236.

The product of its (nonzero) digits is 10800, while the sum is 33.

Adding to 1115332511406 its reverse (6041152335111), we get a palindrome (7156484846517).

The spelling of 1115332511406 in words is "one trillion, one hundred fifteen billion, three hundred thirty-two million, five hundred eleven thousand, four hundred six".