16605161745064 has 16 divisors (see below), whose sum is σ = 31976156063700. Its totient is φ = 8078186794752.

The previous prime is 16605161745037. The next prime is 16605161745113. The reversal of 16605161745064 is 46054716150661.

It can be written as a sum of positive squares in 2 ways, for example, as 16199481920164 + 405679824900 = 4024858^2 + 636930^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28049259409 + ... + 28049260000.

Almost surely, 2^{16605161745064} is an apocalyptic number.

It is an amenable number.

16605161745064 is a deficient number, since it is larger than the sum of its proper divisors (15370994318636).

16605161745064 is a wasteful number, since it uses less digits than its factorization.

16605161745064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56098519452 (or 56098519448 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 52.

The spelling of 16605161745064 in words is "sixteen trillion, six hundred five billion, one hundred sixty-one million, seven hundred forty-five thousand, sixty-four".