11149668540 has 72 divisors (see below), whose sum is σ = 35600706960. Its totient is φ = 2816757504.

The previous prime is 11149668503. The next prime is 11149668553. The reversal of 11149668540 is 4586694111.

11149668540 is a `hidden beast` number, since 1 + 1 + 1 + 49 + 6 + 68 + 540 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1626649 + ... + 1633488.

Almost surely, 2^11149668540 is an apocalyptic number.

11149668540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11149668540 is an abundant number, since it is smaller than the sum of its proper divisors (24451038420).

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

11149668540 is a wasteful number, since it uses less digits than its factorization.

11149668540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3260171 (or 3260166 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The spelling of 11149668540 in words is "eleven billion, one hundred forty-nine million, six hundred sixty-eight thousand, five hundred forty".