16519764975 has 96 divisors (see below), whose sum is σ = 31563265536. Its totient is φ = 7468070400.

The previous prime is 16519764931. The next prime is 16519764991. The reversal of 16519764975 is 57946791561.

It is not a de Polignac number, because 16519764975 - 2¹⁷ = 16519633903 is a prime.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 21822297 + ... + 21823053.

It is an arithmetic number, because the mean of its divisors is an integer number (328784016).

Almost surely, 2^16519764975 is an apocalyptic number.

16519764975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16519764975 is a deficient number, since it is larger than the sum of its proper divisors (15043500561).

16519764975 is a wasteful number, since it uses less digits than its factorization.

16519764975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1185 (or 1180 counting only the distinct ones).

The product of its digits is 14288400, while the sum is 60.

The spelling of 16519764975 in words is "sixteen billion, five hundred nineteen million, seven hundred sixty-four thousand, nine hundred seventy-five".