11145020644455 has 8 divisors (see below), whose sum is σ = 17832033031152. Its totient is φ = 5944011010368.

The previous prime is 11145020644451. The next prime is 11145020644547. The reversal of 11145020644455 is 55444602054111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11145020644455 - 2² = 11145020644451 is a prime.

It is a super-2 number, since 2×11145020644455² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11145020644451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 371500688134 + ... + 371500688163.

It is an arithmetic number, because the mean of its divisors is an integer number (2229004128894).

Almost surely, 2^{11145020644455} is an apocalyptic number.

11145020644455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11145020644455 is a deficient number, since it is larger than the sum of its proper divisors (6687012386697).

11145020644455 is an equidigital number, since it uses as much as digits as its factorization.

11145020644455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743001376305.

The product of its (nonzero) digits is 384000, while the sum is 42.

Adding to 11145020644455 its reverse (55444602054111), we get a palindrome (66589622698566).

The spelling of 11145020644455 in words is "eleven trillion, one hundred forty-five billion, twenty million, six hundred forty-four thousand, four hundred fifty-five".