196556544 has 90 divisors (see below), whose sum is σ = 586157880. Its totient is φ = 65511936.

The previous prime is 196556537. The next prime is 196556557. The reversal of 196556544 is 445655691.

196556544 is a `hidden beast` number, since 1 + 96 + 556 + 5 + 4 + 4 = 666.

196556544 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 196556544.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 15997 + ... + 25475.

Almost surely, 2^196556544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 196556544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293078940).

196556544 is an abundant number, since it is smaller than the sum of its proper divisors (389601336).

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

196556544 is an frugal number, since it uses more digits than its factorization.

196556544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9507 (or 9484 counting only the distinct ones).

The product of its digits is 648000, while the sum is 45.

The square root of 196556544 is about 14019.8624814939. The cubic root of 196556544 is about 581.4278573303.

The spelling of 196556544 in words is "one hundred ninety-six million, five hundred fifty-six thousand, five hundred forty-four".