16607928015949 has 2 divisors, whose sum is σ = 16607928015950. Its totient is φ = 16607928015948.

The previous prime is 16607928015947. The next prime is 16607928015997. The reversal of 16607928015949 is 94951082970661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16603237135849 + 4690880100 = 4074707^2 + 68490^2 .

It is a cyclic number.

It is not a de Polignac number, because 16607928015949 - 2¹ = 16607928015947 is a prime.

Together with 16607928015947, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16607928015941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8303964007974 + 8303964007975.

It is an arithmetic number, because the mean of its divisors is an integer number (8303964007975).

Almost surely, 2^{16607928015949} is an apocalyptic number.

It is an amenable number.

16607928015949 is a deficient number, since it is larger than the sum of its proper divisors (1).

16607928015949 is an equidigital number, since it uses as much as digits as its factorization.

16607928015949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58786560, while the sum is 67.

The spelling of 16607928015949 in words is "sixteen trillion, six hundred seven billion, nine hundred twenty-eight million, fifteen thousand, nine hundred forty-nine".