16615145461133 has 2 divisors, whose sum is σ = 16615145461134. Its totient is φ = 16615145461132.

The previous prime is 16615145461097. The next prime is 16615145461241. The reversal of 16615145461133 is 33116454151661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15189313638409 + 1425831822724 = 3897347^2 + 1194082^2 .

It is a cyclic number.

It is not a de Polignac number, because 16615145461133 - 2⁴² = 12217098950029 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16615145461633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8307572730566 + 8307572730567.

It is an arithmetic number, because the mean of its divisors is an integer number (8307572730567).

Almost surely, 2^{16615145461133} is an apocalyptic number.

It is an amenable number.

16615145461133 is a deficient number, since it is larger than the sum of its proper divisors (1).

16615145461133 is an equidigital number, since it uses as much as digits as its factorization.

16615145461133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 777600, while the sum is 47.

The spelling of 16615145461133 in words is "sixteen trillion, six hundred fifteen billion, one hundred forty-five million, four hundred sixty-one thousand, one hundred thirty-three".