11554242540 has 24 divisors (see below), whose sum is σ = 32351879280. Its totient is φ = 3081131328.

The previous prime is 11554242523. The next prime is 11554242577. The reversal of 11554242540 is 4524245511.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96285295 + ... + 96285414.

It is an arithmetic number, because the mean of its divisors is an integer number (1347994970).

Almost surely, 2^11554242540 is an apocalyptic number.

11554242540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11554242540 is an abundant number, since it is smaller than the sum of its proper divisors (20797636740).

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

11554242540 is a wasteful number, since it uses less digits than its factorization.

11554242540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192570721 (or 192570719 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 33.

The spelling of 11554242540 in words is "eleven billion, five hundred fifty-four million, two hundred forty-two thousand, five hundred forty".