1216063736801 has 2 divisors, whose sum is σ = 1216063736802. Its totient is φ = 1216063736800.

The previous prime is 1216063736753. The next prime is 1216063736807. The reversal of 1216063736801 is 1086373606121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 627935795776 + 588127941025 = 792424^2 + 766895^2 .

It is a cyclic number.

It is not a de Polignac number, because 1216063736801 - 2⁶ = 1216063736737 is a prime.

It is a super-2 number, since 2×1216063736801² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1216063736807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 608031868400 + 608031868401.

It is an arithmetic number, because the mean of its divisors is an integer number (608031868401).

Almost surely, 2^{1216063736801} is an apocalyptic number.

It is an amenable number.

1216063736801 is a deficient number, since it is larger than the sum of its proper divisors (1).

1216063736801 is an equidigital number, since it uses as much as digits as its factorization.

1216063736801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 44.

The spelling of 1216063736801 in words is "one trillion, two hundred sixteen billion, sixty-three million, seven hundred thirty-six thousand, eight hundred one".