1601500736728 has 32 divisors (see below), whose sum is σ = 3100033848960. Its totient is φ = 774830960640.

The previous prime is 1601500736711. The next prime is 1601500736729. The reversal of 1601500736728 is 8276370051061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1601500736729) 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, 1826200 + ... + 2556952.

It is an arithmetic number, because the mean of its divisors is an integer number (96876057780).

Almost surely, 2^{1601500736728} is an apocalyptic number.

It is an amenable number.

1601500736728 is a deficient number, since it is larger than the sum of its proper divisors (1498533112232).

1601500736728 is a wasteful number, since it uses less digits than its factorization.

1601500736728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739627 (or 739623 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 46.

Adding to 1601500736728 its reverse (8276370051061), we get a palindrome (9877870787789).

The spelling of 1601500736728 in words is "one trillion, six hundred one billion, five hundred million, seven hundred thirty-six thousand, seven hundred twenty-eight".