1616041560505 has 8 divisors (see below), whose sum is σ = 2053323394632. Its totient is φ = 1216784233728.

The previous prime is 1616041560493. The next prime is 1616041560509. The reversal of 1616041560505 is 5050651406161.

It can be written as a sum of positive squares in 4 ways, for example, as 424127865001 + 1191913695504 = 651251^2 + 1091748^2 .

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 1616041560505 - 2⁵ = 1616041560473 is a prime.

It is a super-2 number, since 2×1616041560505² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1616041560509) 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, 9506126742 + ... + 9506126911.

It is an arithmetic number, because the mean of its divisors is an integer number (256665424329).

Almost surely, 2^{1616041560505} is an apocalyptic number.

It is an amenable number.

1616041560505 is a deficient number, since it is larger than the sum of its proper divisors (437281834127).

1616041560505 is a wasteful number, since it uses less digits than its factorization.

1616041560505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19012253675.

The product of its (nonzero) digits is 108000, while the sum is 40.

Adding to 1616041560505 its reverse (5050651406161), we get a palindrome (6666692966666).

The spelling of 1616041560505 in words is "one trillion, six hundred sixteen billion, forty-one million, five hundred sixty thousand, five hundred five".