11454121512155 has 16 divisors (see below), whose sum is σ = 15802572441600. Its totient is φ = 7807223281632.

The previous prime is 11454121512139. The next prime is 11454121512161. The reversal of 11454121512155 is 55121512145411.

It is a cyclic number.

It is not a de Polignac number, because 11454121512155 - 2⁴ = 11454121512139 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 979816355 + ... + 979828044.

It is an arithmetic number, because the mean of its divisors is an integer number (987660777600).

Almost surely, 2^{11454121512155} is an apocalyptic number.

11454121512155 is a deficient number, since it is larger than the sum of its proper divisors (4348450929445).

11454121512155 is a wasteful number, since it uses less digits than its factorization.

11454121512155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1959644578.

The product of its digits is 40000, while the sum is 38.

Adding to 11454121512155 its reverse (55121512145411), we get a palindrome (66575633657566).

The spelling of 11454121512155 in words is "eleven trillion, four hundred fifty-four billion, one hundred twenty-one million, five hundred twelve thousand, one hundred fifty-five".