11335897440 has 144 divisors (see below), whose sum is σ = 44210039328. Its totient is φ = 2591059968.

The previous prime is 11335897427. The next prime is 11335897453. The reversal of 11335897440 is 4479853311.

11335897440 is a `hidden beast` number, since 113 + 3 + 5 + 8 + 97 + 440 = 666.

It is an interprime number because it is at equal distance from previous prime (11335897427) and next prime (11335897453).

It is a tau number, because it is divible by the number of its divisors (144).

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 552217 + ... + 572376.

It is an arithmetic number, because the mean of its divisors is an integer number (307014162).

Almost surely, 2^11335897440 is an apocalyptic number.

11335897440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11335897440 is an abundant number, since it is smaller than the sum of its proper divisors (32874141888).

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

11335897440 is a wasteful number, since it uses less digits than its factorization.

11335897440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1124621 (or 1124610 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 11335897440 in words is "eleven billion, three hundred thirty-five million, eight hundred ninety-seven thousand, four hundred forty".