1606897129741 has 4 divisors (see below), whose sum is σ = 1701420490332. Its totient is φ = 1512373769152.

The previous prime is 1606897129709. The next prime is 1606897129801. The reversal of 1606897129741 is 1479217986061.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 963251954116 + 643645175625 = 981454^2 + 802275^2 .

It is a cyclic number.

It is not a de Polignac number, because 1606897129741 - 2⁵ = 1606897129709 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1606897129741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1606897129441) 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 in 3 ways as a sum of consecutive naturals, for example, 47261680270 + ... + 47261680303.

It is an arithmetic number, because the mean of its divisors is an integer number (425355122583).

Almost surely, 2^{1606897129741} is an apocalyptic number.

It is an amenable number.

1606897129741 is a deficient number, since it is larger than the sum of its proper divisors (94523360591).

1606897129741 is an equidigital number, since it uses as much as digits as its factorization.

1606897129741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94523360590.

The product of its (nonzero) digits is 9144576, while the sum is 61.

The spelling of 1606897129741 in words is "one trillion, six hundred six billion, eight hundred ninety-seven million, one hundred twenty-nine thousand, seven hundred forty-one".