11404661580 has 144 divisors (see below), whose sum is σ = 37462449024. Its totient is φ = 2791687680.

The previous prime is 11404661537. The next prime is 11404661621. The reversal of 11404661580 is 8516640411.

11404661580 is a `hidden beast` number, since 1 + 1 + 40 + 466 + 158 + 0 = 666.

11404661580 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 47 ways as a sum of consecutive naturals, for example, 410077 + ... + 437003.

It is an arithmetic number, because the mean of its divisors is an integer number (260155896).

Almost surely, 2^11404661580 is an apocalyptic number.

11404661580 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 11404661580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18731224512).

11404661580 is an abundant number, since it is smaller than the sum of its proper divisors (26057787444).

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

11404661580 is a wasteful number, since it uses less digits than its factorization.

11404661580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27136 (or 27131 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The spelling of 11404661580 in words is "eleven billion, four hundred four million, six hundred sixty-one thousand, five hundred eighty".