1116506401 has 2 divisors, whose sum is σ = 1116506402. Its totient is φ = 1116506400.

The previous prime is 1116506381. The next prime is 1116506423. The reversal of 1116506401 is 1046056111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1065369600 + 51136801 = 32640^2 + 7151^2 .

It is a cyclic number.

It is not a de Polignac number, because 1116506401 - 2¹³ = 1116498209 is a prime.

It is not a weakly prime, because it can be changed into another prime (1116506441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 558253200 + 558253201.

It is an arithmetic number, because the mean of its divisors is an integer number (558253201).

Almost surely, 2^1116506401 is an apocalyptic number.

It is an amenable number.

1116506401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1116506401 is an equidigital number, since it uses as much as digits as its factorization.

1116506401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 1116506401 is about 33414.1646760771. The cubic root of 1116506401 is about 1037.4179044926.

The spelling of 1116506401 in words is "one billion, one hundred sixteen million, five hundred six thousand, four hundred one".