80116736401 has 9 divisors (see below), whose sum is σ = 86757610449. Its totient is φ = 73950513936.

The previous prime is 80116736393. The next prime is 80116736419. The reversal of 80116736401 is 10463761108.

The square root of 80116736401 is 283049.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 41228896401 + 38887840000 = 203049^2 + 197200^2 .

It is not a de Polignac number, because 80116736401 - 2³ = 80116736393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80116739401) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3668751 + ... + 3690523.

Almost surely, 2^80116736401 is an apocalyptic number.

80116736401 is the 283049-th square number.

80116736401 is the 141525-th centered octagonal number.

It is an amenable number.

80116736401 is a deficient number, since it is larger than the sum of its proper divisors (6640874048).

80116736401 is an frugal number, since it uses more digits than its factorization.

80116736401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43572 (or 21786 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The spelling of 80116736401 in words is "eighty billion, one hundred sixteen million, seven hundred thirty-six thousand, four hundred one".