196445512620 has 432 divisors, whose sum is σ = 712092745728. Its totient is φ = 42894593280.

The previous prime is 196445512619. The next prime is 196445512663. The reversal of 196445512620 is 26215544691.

196445512620 is a `hidden beast` number, since 1 + 9 + 6 + 4 + 4 + 5 + 5 + 12 + 620 = 666.

196445512620 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 (45).

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 143 ways as a sum of consecutive naturals, for example, 987163281 + ... + 987163479.

Almost surely, 2^196445512620 is an apocalyptic number.

196445512620 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 196445512620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (356046372864).

196445512620 is an abundant number, since it is smaller than the sum of its proper divisors (515647233108).

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

196445512620 is a wasteful number, since it uses less digits than its factorization.

196445512620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578 (or 374 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The spelling of 196445512620 in words is "one hundred ninety-six billion, four hundred forty-five million, five hundred twelve thousand, six hundred twenty".