2111163440 has 40 divisors (see below), whose sum is σ = 4920192528. Its totient is φ = 842446080.

The previous prime is 2111163419. The next prime is 2111163529. The reversal of 2111163440 is 443611112.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×2111163440² = 8914022140785267200, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2339 + ... + 65021.

Almost surely, 2^2111163440 is an apocalyptic number.

2111163440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111163440 is an abundant number, since it is smaller than the sum of its proper divisors (2809029088).

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

2111163440 is a wasteful number, since it uses less digits than its factorization.

2111163440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63117 (or 63111 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 2111163440 is about 45947.3986205966. The cubic root of 2111163440 is about 1282.8443096953.

Adding to 2111163440 its reverse (443611112), we get a palindrome (2554774552).

The spelling of 2111163440 in words is "two billion, one hundred eleven million, one hundred sixty-three thousand, four hundred forty".