1155411551406 has 128 divisors (see below), whose sum is σ = 2746275840000. Its totient is φ = 317220418944.

The previous prime is 1155411551387. The next prime is 1155411551423. The reversal of 1155411551406 is 6041551145511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 100038520 + ... + 100050068.

It is an arithmetic number, because the mean of its divisors is an integer number (21455280000).

Almost surely, 2^{1155411551406} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1155411551406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1373137920000).

1155411551406 is an abundant number, since it is smaller than the sum of its proper divisors (1590864288594).

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

1155411551406 is a wasteful number, since it uses less digits than its factorization.

1155411551406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12526.

The product of its (nonzero) digits is 60000, while the sum is 39.

Adding to 1155411551406 its reverse (6041551145511), we get a palindrome (7196962696917).

The spelling of 1155411551406 in words is "one trillion, one hundred fifty-five billion, four hundred eleven million, five hundred fifty-one thousand, four hundred six".