10516161005661 has 16 divisors (see below), whose sum is σ = 14034251040768. Its totient is φ = 7004422944000.

The previous prime is 10516161005659. The next prime is 10516161005687. The reversal of 10516161005661 is 16650016161501.

It is not a de Polignac number, because 10516161005661 - 2¹ = 10516161005659 is a prime.

It is a super-2 number, since 2×10516161005661² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10516161005761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152867905 + ... + 152936681.

It is an arithmetic number, because the mean of its divisors is an integer number (877140690048).

Almost surely, 2^{10516161005661} is an apocalyptic number.

It is an amenable number.

10516161005661 is a deficient number, since it is larger than the sum of its proper divisors (3518090035107).

10516161005661 is a wasteful number, since it uses less digits than its factorization.

10516161005661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114212.

The product of its (nonzero) digits is 32400, while the sum is 39.

The spelling of 10516161005661 in words is "ten trillion, five hundred sixteen billion, one hundred sixty-one million, five thousand, six hundred sixty-one".