16994966357 has 2 divisors, whose sum is σ = 16994966358. Its totient is φ = 16994966356.

The previous prime is 16994966299. The next prime is 16994966399. The reversal of 16994966357 is 75366949961.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11960921956 + 5034044401 = 109366^2 + 70951^2 .

It is a cyclic number.

It is not a de Polignac number, because 16994966357 - 2¹⁶ = 16994900821 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16994966293 and 16994966302.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16994966057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8497483178 + 8497483179.

It is an arithmetic number, because the mean of its divisors is an integer number (8497483179).

Almost surely, 2^16994966357 is an apocalyptic number.

It is an amenable number.

16994966357 is a deficient number, since it is larger than the sum of its proper divisors (1).

16994966357 is an equidigital number, since it uses as much as digits as its factorization.

16994966357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 66134880, while the sum is 65.

The spelling of 16994966357 in words is "sixteen billion, nine hundred ninety-four million, nine hundred sixty-six thousand, three hundred fifty-seven".