196638101365 has 8 divisors (see below), whose sum is σ = 244102470840. Its totient is φ = 151885981632.

The previous prime is 196638101353. The next prime is 196638101369. The reversal of 196638101365 is 563101836691.

It can be written as a sum of positive squares in 4 ways, for example, as 49088390481 + 147549710884 = 221559^2 + 384122^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 196638101365 - 2¹⁹ = 196637577077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196638101369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 678062274 + ... + 678062563.

It is an arithmetic number, because the mean of its divisors is an integer number (30512808855).

Almost surely, 2^196638101365 is an apocalyptic number.

It is an amenable number.

196638101365 is a deficient number, since it is larger than the sum of its proper divisors (47464369475).

196638101365 is a wasteful number, since it uses less digits than its factorization.

196638101365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356124871.

The product of its (nonzero) digits is 699840, while the sum is 49.

The spelling of 196638101365 in words is "one hundred ninety-six billion, six hundred thirty-eight million, one hundred one thousand, three hundred sixty-five".