1516383385845 has 32 divisors (see below), whose sum is σ = 2442375936000. Its totient is φ = 803356787520.

The previous prime is 1516383385843. The next prime is 1516383385889. The reversal of 1516383385845 is 5485833836151.

It is not a de Polignac number, because 1516383385845 - 2¹ = 1516383385843 is a prime.

It is a super-2 number, since 2×1516383385845² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1516383385843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3553080 + ... + 3956910.

It is an arithmetic number, because the mean of its divisors is an integer number (76324248000).

Almost surely, 2^{1516383385845} is an apocalyptic number.

1516383385845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1516383385845 is a deficient number, since it is larger than the sum of its proper divisors (925992550155).

1516383385845 is a wasteful number, since it uses less digits than its factorization.

1516383385845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405505.

The product of its digits is 41472000, while the sum is 60.

The spelling of 1516383385845 in words is "one trillion, five hundred sixteen billion, three hundred eighty-three million, three hundred eighty-five thousand, eight hundred forty-five".