11143100640 has 96 divisors (see below), whose sum is σ = 40115174400. Its totient is φ = 2546993664.

The previous prime is 11143100627. The next prime is 11143100693. The reversal of 11143100640 is 4600134111.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

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, 1654840 + ... + 1661559.

It is an arithmetic number, because the mean of its divisors is an integer number (417866400).

Almost surely, 2^11143100640 is an apocalyptic number.

11143100640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11143100640 is an abundant number, since it is smaller than the sum of its proper divisors (28972073760).

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

11143100640 is a wasteful number, since it uses less digits than its factorization.

11143100640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3316424 (or 3316416 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 11143100640 its reverse (4600134111), we get a palindrome (15743234751).

The spelling of 11143100640 in words is "eleven billion, one hundred forty-three million, one hundred thousand, six hundred forty".