16607928015997 has 2 divisors, whose sum is σ = 16607928015998. Its totient is φ = 16607928015996.

The previous prime is 16607928015949. The next prime is 16607928016007. The reversal of 16607928015997 is 79951082970661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16441573342041 + 166354673956 = 4054821^2 + 407866^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16607928015997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16607928015947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8303964007998 + 8303964007999.

It is an arithmetic number, because the mean of its divisors is an integer number (8303964007999).

Almost surely, 2^{16607928015997} is an apocalyptic number.

It is an amenable number.

16607928015997 is a deficient number, since it is larger than the sum of its proper divisors (1).

16607928015997 is an equidigital number, since it uses as much as digits as its factorization.

16607928015997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 102876480, while the sum is 70.

The spelling of 16607928015997 in words is "sixteen trillion, six hundred seven billion, nine hundred twenty-eight million, fifteen thousand, nine hundred ninety-seven".