1601256247303 has 4 divisors (see below), whose sum is σ = 1695447791280. Its totient is φ = 1507064703328.

The previous prime is 1601256247273. The next prime is 1601256247321. The reversal of 1601256247303 is 3037426521061.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1601256247303 - 2¹⁷ = 1601256116231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1601256247603) 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 in 3 ways as a sum of consecutive naturals, for example, 47095771963 + ... + 47095771996.

It is an arithmetic number, because the mean of its divisors is an integer number (423861947820).

Almost surely, 2^{1601256247303} is an apocalyptic number.

1601256247303 is a deficient number, since it is larger than the sum of its proper divisors (94191543977).

1601256247303 is an equidigital number, since it uses as much as digits as its factorization.

1601256247303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94191543976.

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 1601256247303 in words is "one trillion, six hundred one billion, two hundred fifty-six million, two hundred forty-seven thousand, three hundred three".