161106352515 has 48 divisors (see below), whose sum is σ = 289814773248. Its totient is φ = 85857778656.

The previous prime is 161106352507. The next prime is 161106352559. The reversal of 161106352515 is 515253601161.

161106352515 is a `hidden beast` number, since 1 + 6 + 1 + 1 + 0 + 635 + 2 + 5 + 15 = 666.

161106352515 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 161106352515 - 2³ = 161106352507 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 161106352515.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1562344 + ... + 1662266.

It is an arithmetic number, because the mean of its divisors is an integer number (6037807776).

Almost surely, 2^161106352515 is an apocalyptic number.

161106352515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

161106352515 is a deficient number, since it is larger than the sum of its proper divisors (128708420733).

161106352515 is an equidigital number, since it uses as much as digits as its factorization.

161106352515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101270 (or 101258 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

Adding to 161106352515 its reverse (515253601161), we get a palindrome (676359953676).

The spelling of 161106352515 in words is "one hundred sixty-one billion, one hundred six million, three hundred fifty-two thousand, five hundred fifteen".