196662535641 has 48 divisors (see below), whose sum is σ = 334238224320. Its totient is φ = 109853573760.

The previous prime is 196662535613. The next prime is 196662535691. The reversal of 196662535641 is 146535266691.

It is not a de Polignac number, because 196662535641 - 2⁵ = 196662535609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (196662535691) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 732195 + ... + 964071.

It is an arithmetic number, because the mean of its divisors is an integer number (6963296340).

Almost surely, 2^196662535641 is an apocalyptic number.

196662535641 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

196662535641 is a deficient number, since it is larger than the sum of its proper divisors (137575688679).

196662535641 is a wasteful number, since it uses less digits than its factorization.

196662535641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232566 (or 232563 counting only the distinct ones).

The product of its digits is 6998400, while the sum is 54.

The spelling of 196662535641 in words is "one hundred ninety-six billion, six hundred sixty-two million, five hundred thirty-five thousand, six hundred forty-one".