3516680735081 has 2 divisors, whose sum is σ = 3516680735082. Its totient is φ = 3516680735080.

The previous prime is 3516680735069. The next prime is 3516680735089. The reversal of 3516680735081 is 1805370866153.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3095168157481 + 421512577600 = 1759309^2 + 649240^2 .

It is a cyclic number.

It is not a de Polignac number, because 3516680735081 - 2¹⁸ = 3516680472937 is a prime.

It is a super-2 number, since 2×3516680735081² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3516680735089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1758340367540 + 1758340367541.

It is an arithmetic number, because the mean of its divisors is an integer number (1758340367541).

Almost surely, 2^{3516680735081} is an apocalyptic number.

It is an amenable number.

3516680735081 is a deficient number, since it is larger than the sum of its proper divisors (1).

3516680735081 is an equidigital number, since it uses as much as digits as its factorization.

3516680735081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3628800, while the sum is 53.

The spelling of 3516680735081 in words is "three trillion, five hundred sixteen billion, six hundred eighty million, seven hundred thirty-five thousand, eighty-one".