1600391489201 has 8 divisors (see below), whose sum is σ = 1640612615208. Its totient is φ = 1560226896000.

The previous prime is 1600391489183. The next prime is 1600391489251. The reversal of 1600391489201 is 1029841930061.

It can be written as a sum of positive squares in 4 ways, for example, as 548496400 + 1599842992801 = 23420^2 + 1264849^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1600391489201 - 2³⁴ = 1583211620017 is a prime.

It is a super-2 number, since 2×1600391489201² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1600391489251) 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, 14075870 + ... + 14189111.

It is an arithmetic number, because the mean of its divisors is an integer number (205076576901).

Almost surely, 2^{1600391489201} is an apocalyptic number.

It is an amenable number.

1600391489201 is a deficient number, since it is larger than the sum of its proper divisors (40221126007).

1600391489201 is a wasteful number, since it uses less digits than its factorization.

1600391489201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28266403.

The product of its (nonzero) digits is 93312, while the sum is 44.

The spelling of 1600391489201 in words is "one trillion, six hundred billion, three hundred ninety-one million, four hundred eighty-nine thousand, two hundred one".