1600391138201 has 2 divisors, whose sum is σ = 1600391138202. Its totient is φ = 1600391138200.

The previous prime is 1600391138107. The next prime is 1600391138257. The reversal of 1600391138201 is 1028311930061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1588003225600 + 12387912601 = 1260160^2 + 111301^2 .

It is a cyclic number.

It is not a de Polignac number, because 1600391138201 - 2³⁰ = 1599317396377 is a prime.

It is a super-2 number, since 2×1600391138201² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1600391138261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 800195569100 + 800195569101.

It is an arithmetic number, because the mean of its divisors is an integer number (800195569101).

Almost surely, 2^{1600391138201} is an apocalyptic number.

It is an amenable number.

1600391138201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1600391138201 is an equidigital number, since it uses as much as digits as its factorization.

1600391138201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 35.

The spelling of 1600391138201 in words is "one trillion, six hundred billion, three hundred ninety-one million, one hundred thirty-eight thousand, two hundred one".