16385245375 has 16 divisors (see below), whose sum is σ = 20555877888. Its totient is φ = 13039548000.

The previous prime is 16385245321. The next prime is 16385245391. The reversal of 16385245375 is 57354258361.

It is a happy number.

It is not a de Polignac number, because 16385245375 - 2¹⁵ = 16385212607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 319272 + ... + 367021.

It is an arithmetic number, because the mean of its divisors is an integer number (1284742368).

Almost surely, 2^16385245375 is an apocalyptic number.

16385245375 is a deficient number, since it is larger than the sum of its proper divisors (4170632513).

16385245375 is an equidigital number, since it uses as much as digits as its factorization.

16385245375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686499 (or 686489 counting only the distinct ones).

The product of its digits is 3024000, while the sum is 49.

The spelling of 16385245375 in words is "sixteen billion, three hundred eighty-five million, two hundred forty-five thousand, three hundred seventy-five".