196445896321 has 4 divisors (see below), whose sum is σ = 204987022272. Its totient is φ = 187904770372.

The previous prime is 196445896277. The next prime is 196445896333. The reversal of 196445896321 is 123698544691.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 196445896321 - 2¹⁵ = 196445863553 is a prime.

It is a super-2 number, since 2×196445896321² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196445996321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4270562941 + ... + 4270562986.

It is an arithmetic number, because the mean of its divisors is an integer number (51246755568).

Almost surely, 2^196445896321 is an apocalyptic number.

It is an amenable number.

196445896321 is a deficient number, since it is larger than the sum of its proper divisors (8541125951).

196445896321 is an equidigital number, since it uses as much as digits as its factorization.

196445896321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8541125950.

The product of its digits is 11197440, while the sum is 58.

The spelling of 196445896321 in words is "one hundred ninety-six billion, four hundred forty-five million, eight hundred ninety-six thousand, three hundred twenty-one".