16998415061 has 2 divisors, whose sum is σ = 16998415062. Its totient is φ = 16998415060.

The previous prime is 16998414997. The next prime is 16998415111. The reversal of 16998415061 is 16051489961.

It is an a-pointer prime, because the next prime (16998415111) can be obtained adding 16998415061 to its sum of digits (50).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16247326225 + 751088836 = 127465^2 + 27406^2 .

It is a cyclic number.

It is not a de Polignac number, because 16998415061 - 2⁶ = 16998414997 is a prime.

It is a super-2 number, since 2×16998415061² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16998415661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8499207530 + 8499207531.

It is an arithmetic number, because the mean of its divisors is an integer number (8499207531).

Almost surely, 2^16998415061 is an apocalyptic number.

It is an amenable number.

16998415061 is a deficient number, since it is larger than the sum of its proper divisors (1).

16998415061 is an equidigital number, since it uses as much as digits as its factorization.

16998415061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 466560, while the sum is 50.

The spelling of 16998415061 in words is "sixteen billion, nine hundred ninety-eight million, four hundred fifteen thousand, sixty-one".