11161016440 has 64 divisors (see below), whose sum is σ = 28713346560. Its totient is φ = 3824822400.

The previous prime is 11161016407. The next prime is 11161016467. The reversal of 11161016440 is 4461016111.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 670215 + ... + 686665.

It is an arithmetic number, because the mean of its divisors is an integer number (448646040).

Almost surely, 2^11161016440 is an apocalyptic number.

11161016440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11161016440 is an abundant number, since it is smaller than the sum of its proper divisors (17552330120).

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

11161016440 is a wasteful number, since it uses less digits than its factorization.

11161016440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18892 (or 18888 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 11161016440 in words is "eleven billion, one hundred sixty-one million, sixteen thousand, four hundred forty".