11670043440 has 120 divisors (see below), whose sum is σ = 39765048624. Its totient is φ = 2829094400.

The previous prime is 11670043421. The next prime is 11670043501. The reversal of 11670043440 is 4434007611.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 11670043398 and 11670043407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 171891 + ... + 229970.

Almost surely, 2^11670043440 is an apocalyptic number.

11670043440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11670043440 is an abundant number, since it is smaller than the sum of its proper divisors (28095005184).

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

11670043440 is a wasteful number, since it uses less digits than its factorization.

11670043440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401899 (or 401882 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The spelling of 11670043440 in words is "eleven billion, six hundred seventy million, forty-three thousand, four hundred forty".