11606421456 has 90 divisors (see below), whose sum is σ = 37785043842. Its totient is φ = 3316118400.

The previous prime is 11606421401. The next prime is 11606421467. The reversal of 11606421456 is 65412460611.

11606421456 is a `hidden beast` number, since 1 + 1 + 6 + 0 + 642 + 1 + 4 + 5 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10177581456 + 1428840000 = 100884^2 + 37800^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 11606421456.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 815395 + ... + 829506.

Almost surely, 2^11606421456 is an apocalyptic number.

11606421456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11606421456 is an abundant number, since it is smaller than the sum of its proper divisors (26178622386).

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

11606421456 is a wasteful number, since it uses less digits than its factorization.

11606421456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1644929 (or 1644913 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The spelling of 11606421456 in words is "eleven billion, six hundred six million, four hundred twenty-one thousand, four hundred fifty-six".