11145020644456 has 64 divisors (see below), whose sum is σ = 21496831574400. Its totient is φ = 5413703500800.

The previous prime is 11145020644451. The next prime is 11145020644547. The reversal of 11145020644456 is 65444602054111.

It is a happy number.

It is a super-2 number, since 2×11145020644456² (a number of 27 digits) contains 22 as substring.

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

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143651131 + ... + 143728693.

It is an arithmetic number, because the mean of its divisors is an integer number (335887993350).

Almost surely, 2^{11145020644456} is an apocalyptic number.

It is an amenable number.

11145020644456 is a deficient number, since it is larger than the sum of its proper divisors (10351810929944).

11145020644456 is a wasteful number, since it uses less digits than its factorization.

11145020644456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79450 (or 79446 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 43.

Adding to 11145020644456 its reverse (65444602054111), we get a palindrome (76589622698567).

The spelling of 11145020644456 in words is "eleven trillion, one hundred forty-five billion, twenty million, six hundred forty-four thousand, four hundred fifty-six".