196455243511 has 4 divisors (see below), whose sum is σ = 196480306224. Its totient is φ = 196430180800.

The previous prime is 196455243473. The next prime is 196455243539. The reversal of 196455243511 is 115342554691.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 196455243511 - 2¹⁷ = 196455112439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196455243581) 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, 12519595 + ... + 12535276.

It is an arithmetic number, because the mean of its divisors is an integer number (49120076556).

Almost surely, 2^196455243511 is an apocalyptic number.

196455243511 is a deficient number, since it is larger than the sum of its proper divisors (25062713).

196455243511 is an equidigital number, since it uses as much as digits as its factorization.

196455243511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25062712.

The product of its digits is 648000, while the sum is 46.

The spelling of 196455243511 in words is "one hundred ninety-six billion, four hundred fifty-five million, two hundred forty-three thousand, five hundred eleven".