11035801840 has 80 divisors (see below), whose sum is σ = 29365120512. Its totient is φ = 3778359552.

The previous prime is 11035801823. The next prime is 11035801849. The reversal of 11035801840 is 4810853011.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11035801849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 393567 + ... + 420673.

Almost surely, 2^11035801840 is an apocalyptic number.

11035801840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11035801840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14682560256).

11035801840 is an abundant number, since it is smaller than the sum of its proper divisors (18329318672).

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

11035801840 is a wasteful number, since it uses less digits than its factorization.

11035801840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27854 (or 27848 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 31.

The spelling of 11035801840 in words is "eleven billion, thirty-five million, eight hundred one thousand, eight hundred forty".