16011616600061 has 4 divisors (see below), whose sum is σ = 16011651506172. Its totient is φ = 16011581693952.

The previous prime is 16011616600043. The next prime is 16011616600099. The reversal of 16011616600061 is 16000661611061.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6111248744836 + 9900367855225 = 2472094^2 + 3146485^2 .

It is a cyclic number.

It is not a de Polignac number, because 16011616600061 - 2²² = 16011612405757 is a prime.

It is a super-2 number, since 2×16011616600061² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16011616599994 and 16011616600030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16011616600961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16755710 + ... + 17685503.

It is an arithmetic number, because the mean of its divisors is an integer number (4002912876543).

Almost surely, 2^{16011616600061} is an apocalyptic number.

It is an amenable number.

16011616600061 is a deficient number, since it is larger than the sum of its proper divisors (34906111).

16011616600061 is an equidigital number, since it uses as much as digits as its factorization.

16011616600061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34906110.

The product of its (nonzero) digits is 7776, while the sum is 35.

The spelling of 16011616600061 in words is "sixteen trillion, eleven billion, six hundred sixteen million, six hundred thousand, sixty-one".