11616400511155 has 64 divisors (see below), whose sum is σ = 15910979973120. Its totient is φ = 8068688409600.

The previous prime is 11616400511141. The next prime is 11616400511189. The reversal of 11616400511155 is 55111500461611.

It is not a de Polignac number, because 11616400511155 - 2¹⁷ = 11616400380083 is a prime.

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, 15994999 + ... + 16705471.

It is an arithmetic number, because the mean of its divisors is an integer number (248609062080).

Almost surely, 2^{11616400511155} is an apocalyptic number.

11616400511155 is a deficient number, since it is larger than the sum of its proper divisors (4294579461965).

11616400511155 is a wasteful number, since it uses less digits than its factorization.

11616400511155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710692.

The product of its (nonzero) digits is 18000, while the sum is 37.

Adding to 11616400511155 its reverse (55111500461611), we get a palindrome (66727900972766).

The spelling of 11616400511155 in words is "eleven trillion, six hundred sixteen billion, four hundred million, five hundred eleven thousand, one hundred fifty-five".