11099249540 has 24 divisors (see below), whose sum is σ = 23478564312. Its totient is φ = 4407292160.

The previous prime is 11099249537. The next prime is 11099249563. The reversal of 11099249540 is 4594299011.

It can be written as a sum of positive squares in 4 ways, for example, as 467164996 + 10632084544 = 21614^2 + 103112^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11099249491 and 11099249500.

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, 2022671 + ... + 2028150.

It is an arithmetic number, because the mean of its divisors is an integer number (978273513).

Almost surely, 2^11099249540 is an apocalyptic number.

11099249540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11099249540 is an abundant number, since it is smaller than the sum of its proper divisors (12379314772).

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

11099249540 is a wasteful number, since it uses less digits than its factorization.

11099249540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4050967 (or 4050965 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 44.

The spelling of 11099249540 in words is "eleven billion, ninety-nine million, two hundred forty-nine thousand, five hundred forty".