196938393216 has 64 divisors (see below), whose sum is σ = 523236809280. Its totient is φ = 65631172608.

The previous prime is 196938393193. The next prime is 196938393227. The reversal of 196938393216 is 612393839691.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 196938393216.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1697580 + ... + 1809876.

It is an arithmetic number, because the mean of its divisors is an integer number (8175575145).

Almost surely, 2^196938393216 is an apocalyptic number.

196938393216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

196938393216 is an abundant number, since it is smaller than the sum of its proper divisors (326298416064).

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

196938393216 is a wasteful number, since it uses less digits than its factorization.

196938393216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116881 (or 116869 counting only the distinct ones).

The product of its digits is 11337408, while the sum is 60.

The spelling of 196938393216 in words is "one hundred ninety-six billion, nine hundred thirty-eight million, three hundred ninety-three thousand, two hundred sixteen".