1601630072453 has 2 divisors, whose sum is σ = 1601630072454. Its totient is φ = 1601630072452.

The previous prime is 1601630072411. The next prime is 1601630072477. The reversal of 1601630072453 is 3542700361061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1584459115009 + 17170957444 = 1258753^2 + 131038^2 .

It is a cyclic number.

It is not a de Polignac number, because 1601630072453 - 2¹⁶ = 1601630006917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1601630062453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 800815036226 + 800815036227.

It is an arithmetic number, because the mean of its divisors is an integer number (800815036227).

Almost surely, 2^{1601630072453} is an apocalyptic number.

It is an amenable number.

1601630072453 is a deficient number, since it is larger than the sum of its proper divisors (1).

1601630072453 is an equidigital number, since it uses as much as digits as its factorization.

1601630072453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 38.

The spelling of 1601630072453 in words is "one trillion, six hundred one billion, six hundred thirty million, seventy-two thousand, four hundred fifty-three".