1061510515161 has 16 divisors (see below), whose sum is σ = 1419252398400. Its totient is φ = 705722010048.

The previous prime is 1061510515099. The next prime is 1061510515183. The reversal of 1061510515161 is 1615150151601.

It is not a de Polignac number, because 1061510515161 - 2¹⁰ = 1061510514137 is a prime.

It is a super-2 number, since 2×1061510515161² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1061510515061) 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 15 ways as a sum of consecutive naturals, for example, 4967835 + ... + 5177103.

It is an arithmetic number, because the mean of its divisors is an integer number (88703274900).

Almost surely, 2^{1061510515161} is an apocalyptic number.

It is an amenable number.

1061510515161 is a deficient number, since it is larger than the sum of its proper divisors (357741883239).

1061510515161 is a wasteful number, since it uses less digits than its factorization.

1061510515161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213928.

The product of its (nonzero) digits is 4500, while the sum is 33.

Adding to 1061510515161 its reverse (1615150151601), we get a palindrome (2676660666762).

The spelling of 1061510515161 in words is "one trillion, sixty-one billion, five hundred ten million, five hundred fifteen thousand, one hundred sixty-one".