5329401661 has 2 divisors, whose sum is σ = 5329401662. Its totient is φ = 5329401660.

The previous prime is 5329401647. The next prime is 5329401677. The reversal of 5329401661 is 1661049235.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3364696036 + 1964705625 = 58006^2 + 44325^2 .

It is a cyclic number.

It is not a de Polignac number, because 5329401661 - 2⁹ = 5329401149 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5329401661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5329401761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2664700830 + 2664700831.

It is an arithmetic number, because the mean of its divisors is an integer number (2664700831).

Almost surely, 2^5329401661 is an apocalyptic number.

It is an amenable number.

5329401661 is a deficient number, since it is larger than the sum of its proper divisors (1).

5329401661 is an equidigital number, since it uses as much as digits as its factorization.

5329401661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 5329401661 is about 73002.7510509022. The cubic root of 5329401661 is about 1746.7314949125.

The spelling of 5329401661 in words is "five billion, three hundred twenty-nine million, four hundred one thousand, six hundred sixty-one".