11155461040 has 20 divisors (see below), whose sum is σ = 25936447104. Its totient is φ = 4462184384.

The previous prime is 11155460971. The next prime is 11155461043. The reversal of 11155461040 is 4016455111.

11155461040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×11155461040² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11155461043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69721552 + ... + 69721711.

Almost surely, 2^11155461040 is an apocalyptic number.

11155461040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11155461040 is an abundant number, since it is smaller than the sum of its proper divisors (14780986064).

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

11155461040 is a wasteful number, since it uses less digits than its factorization.

11155461040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139443276 (or 139443270 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 28.

The spelling of 11155461040 in words is "eleven billion, one hundred fifty-five million, four hundred sixty-one thousand, forty".