192641543065 has 4 divisors (see below), whose sum is σ = 231169851684. Its totient is φ = 154113234448.

The previous prime is 192641543057. The next prime is 192641543069. The reversal of 192641543065 is 560345146291.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 560345146291 = 7 ⋅80049306613.

It can be written as a sum of positive squares in 2 ways, for example, as 55014640704 + 137626902361 = 234552^2 + 370981^2 .

It is a cyclic number.

It is not a de Polignac number, because 192641543065 - 2³ = 192641543057 is a prime.

It is a super-2 number, since 2×192641543065² (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 (192641543069) 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, 19264154302 + ... + 19264154311.

It is an arithmetic number, because the mean of its divisors is an integer number (57792462921).

Almost surely, 2^192641543065 is an apocalyptic number.

It is an amenable number.

192641543065 is a deficient number, since it is larger than the sum of its proper divisors (38528308619).

192641543065 is an equidigital number, since it uses as much as digits as its factorization.

192641543065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38528308618.

The product of its (nonzero) digits is 777600, while the sum is 46.

The spelling of 192641543065 in words is "one hundred ninety-two billion, six hundred forty-one million, five hundred forty-three thousand, sixty-five".