5156446401 has 6 divisors (see below), whose sum is σ = 7448200370. Its totient is φ = 3437630928.

The previous prime is 5156446391. The next prime is 5156446433. The reversal of 5156446401 is 1046446515.

5156446401 is a `hidden beast` number, since 5 + 1 + 5 + 6 + 4 + 4 + 640 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3343730625 + 1812715776 = 57825^2 + 42576^2 .

It is not a de Polignac number, because 5156446401 - 2¹⁴ = 5156430017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5156446481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 286469236 + ... + 286469253.

Almost surely, 2^5156446401 is an apocalyptic number.

It is an amenable number.

5156446401 is a deficient number, since it is larger than the sum of its proper divisors (2291753969).

5156446401 is a wasteful number, since it uses less digits than its factorization.

5156446401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572938495 (or 572938492 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 5156446401 is about 71808.4006297313. The cubic root of 5156446401 is about 1727.6277419966.

The spelling of 5156446401 in words is "five billion, one hundred fifty-six million, four hundred forty-six thousand, four hundred one".