1361633236401 has 16 divisors (see below), whose sum is σ = 1912533215040. Its totient is φ = 859317825600.

The previous prime is 1361633236339. The next prime is 1361633236441. The reversal of 1361633236401 is 1046323361631.

It is a happy number.

It is not a de Polignac number, because 1361633236401 - 2¹⁰ = 1361633235377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1361633236401.

It is not an unprimeable number, because it can be changed into a prime (1361633236441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9106590 + ... + 9254903.

It is an arithmetic number, because the mean of its divisors is an integer number (119533325940).

Almost surely, 2^{1361633236401} is an apocalyptic number.

It is an amenable number.

1361633236401 is a deficient number, since it is larger than the sum of its proper divisors (550899978639).

1361633236401 is a wasteful number, since it uses less digits than its factorization.

1361633236401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18362816.

The product of its (nonzero) digits is 139968, while the sum is 39.

The spelling of 1361633236401 in words is "one trillion, three hundred sixty-one billion, six hundred thirty-three million, two hundred thirty-six thousand, four hundred one".