11455765544 has 32 divisors (see below), whose sum is σ = 22197331200. Its totient is φ = 5536892160.

The previous prime is 11455765543. The next prime is 11455765561. The reversal of 11455765544 is 44556755411.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (11455765543) 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, 199472 + ... + 250400.

It is an arithmetic number, because the mean of its divisors is an integer number (693666600).

Almost surely, 2^11455765544 is an apocalyptic number.

It is an amenable number.

11455765544 is a deficient number, since it is larger than the sum of its proper divisors (10741565656).

11455765544 is a wasteful number, since it uses less digits than its factorization.

11455765544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51873 (or 51869 counting only the distinct ones).

The product of its digits is 1680000, while the sum is 47.

The spelling of 11455765544 in words is "eleven billion, four hundred fifty-five million, seven hundred sixty-five thousand, five hundred forty-four".