11699195078401 has 2 divisors, whose sum is σ = 11699195078402. Its totient is φ = 11699195078400.

The previous prime is 11699195078381. The next prime is 11699195078443. The reversal of 11699195078401 is 10487059199611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9708683247376 + 1990511831025 = 3115876^2 + 1410855^2 .

It is an emirp because it is prime and its reverse (10487059199611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11699195078401 - 2⁵ = 11699195078369 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11699195078401.

It is not a weakly prime, because it can be changed into another prime (11699195078491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5849597539200 + 5849597539201.

It is an arithmetic number, because the mean of its divisors is an integer number (5849597539201).

Almost surely, 2^{11699195078401} is an apocalyptic number.

It is an amenable number.

11699195078401 is a deficient number, since it is larger than the sum of its proper divisors (1).

11699195078401 is an equidigital number, since it uses as much as digits as its factorization.

11699195078401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4898880, while the sum is 61.

The spelling of 11699195078401 in words is "eleven trillion, six hundred ninety-nine billion, one hundred ninety-five million, seventy-eight thousand, four hundred one".