1616364036401 has 2 divisors, whose sum is σ = 1616364036402. Its totient is φ = 1616364036400.

The previous prime is 1616364036349. The next prime is 1616364036409. The reversal of 1616364036401 is 1046304636161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1345182432400 + 271181604001 = 1159820^2 + 520751^2 .

It is a cyclic number.

It is not a de Polignac number, because 1616364036401 - 2¹⁸ = 1616363774257 is a prime.

It is a super-2 number, since 2×1616364036401² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1616364036409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 808182018200 + 808182018201.

It is an arithmetic number, because the mean of its divisors is an integer number (808182018201).

Almost surely, 2^{1616364036401} is an apocalyptic number.

It is an amenable number.

1616364036401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1616364036401 is an equidigital number, since it uses as much as digits as its factorization.

1616364036401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 41.

The spelling of 1616364036401 in words is "one trillion, six hundred sixteen billion, three hundred sixty-four million, thirty-six thousand, four hundred one".