196815140244001 has 4 divisors (see below), whose sum is σ = 196816634671104. Its totient is φ = 196813645816900.

The previous prime is 196815140243977. The next prime is 196815140244031. The reversal of 196815140244001 is 100442041518691.

It is a happy number.

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 196815140244001 - 2¹³ = 196815140235809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196815140244031) 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, 747015985 + ... + 747279406.

It is an arithmetic number, because the mean of its divisors is an integer number (49204158667776).

Almost surely, 2^{196815140244001} is an apocalyptic number.

It is an amenable number.

196815140244001 is a deficient number, since it is larger than the sum of its proper divisors (1494427103).

196815140244001 is a wasteful number, since it uses less digits than its factorization.

196815140244001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1494427102.

The product of its (nonzero) digits is 276480, while the sum is 46.

The spelling of 196815140244001 in words is "one hundred ninety-six trillion, eight hundred fifteen billion, one hundred forty million, two hundred forty-four thousand, one".