1600391489244 has 48 divisors (see below), whose sum is σ = 3755579520000. Its totient is φ = 530422419456.

The previous prime is 1600391489183. The next prime is 1600391489251. The reversal of 1600391489244 is 4429841930061.

It is a super-2 number, since 2×1600391489244² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1712757 + ... + 2476755.

It is an arithmetic number, because the mean of its divisors is an integer number (78241240000).

Almost surely, 2^{1600391489244} is an apocalyptic number.

It is an amenable number.

1600391489244 is an abundant number, since it is smaller than the sum of its proper divisors (2155188030756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1600391489244 is a wasteful number, since it uses less digits than its factorization.

1600391489244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765002 (or 765000 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 51.

The spelling of 1600391489244 in words is "one trillion, six hundred billion, three hundred ninety-one million, four hundred eighty-nine thousand, two hundred forty-four".