16396519775 has 24 divisors (see below), whose sum is σ = 21423368400. Its totient is φ = 12414297600.

The previous prime is 16396519747. The next prime is 16396519787. The reversal of 16396519775 is 57791569361.

It is not a de Polignac number, because 16396519775 - 2¹⁴ = 16396503391 is a prime.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 468071 + ... + 501879.

It is an arithmetic number, because the mean of its divisors is an integer number (892640350).

Almost surely, 2^16396519775 is an apocalyptic number.

16396519775 is a deficient number, since it is larger than the sum of its proper divisors (5026848625).

16396519775 is a wasteful number, since it uses less digits than its factorization.

16396519775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34859 (or 34854 counting only the distinct ones).

The product of its digits is 10716300, while the sum is 59.

The spelling of 16396519775 in words is "sixteen billion, three hundred ninety-six million, five hundred nineteen thousand, seven hundred seventy-five".