1601437173001 has 4 divisors (see below), whose sum is σ = 1631652968772. Its totient is φ = 1571221377232.

The previous prime is 1601437172987. The next prime is 1601437173013. The reversal of 1601437173001 is 1003717341061.

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 1421283614976 + 180153558025 = 1192176^2 + 424445^2 .

It is a cyclic number.

It is not a de Polignac number, because 1601437173001 - 2⁷ = 1601437172873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1601437177001) 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, 15107897806 + ... + 15107897911.

It is an arithmetic number, because the mean of its divisors is an integer number (407913242193).

Almost surely, 2^{1601437173001} is an apocalyptic number.

It is an amenable number.

1601437173001 is a deficient number, since it is larger than the sum of its proper divisors (30215795771).

1601437173001 is an equidigital number, since it uses as much as digits as its factorization.

1601437173001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30215795770.

The product of its (nonzero) digits is 10584, while the sum is 34.

The spelling of 1601437173001 in words is "one trillion, six hundred one billion, four hundred thirty-seven million, one hundred seventy-three thousand, one".