1601742887443 has 8 divisors (see below), whose sum is σ = 1604176551936. Its totient is φ = 1599309558600.

The previous prime is 1601742887401. The next prime is 1601742887453. The reversal of 1601742887443 is 3447882471061.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1601742887443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1601742887453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10470798 + ... + 10622668.

It is an arithmetic number, because the mean of its divisors is an integer number (200522068992).

Almost surely, 2^{1601742887443} is an apocalyptic number.

1601742887443 is a deficient number, since it is larger than the sum of its proper divisors (2433664493).

1601742887443 is a wasteful number, since it uses less digits than its factorization.

1601742887443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167825.

The product of its (nonzero) digits is 7225344, while the sum is 55.

The spelling of 1601742887443 in words is "one trillion, six hundred one billion, seven hundred forty-two million, eight hundred eighty-seven thousand, four hundred forty-three".