16640125390389 has 16 divisors (see below), whose sum is σ = 23734126700928. Its totient is φ = 10333225224192.

The previous prime is 16640125390387. The next prime is 16640125390391. The reversal of 16640125390389 is 98309352104661.

It is an interprime number because it is at equal distance from previous prime (16640125390387) and next prime (16640125390391).

It is not a de Polignac number, because 16640125390389 - 2¹ = 16640125390387 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16640125390387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1681835097 + ... + 1681844990.

It is an arithmetic number, because the mean of its divisors is an integer number (1483382918808).

Almost surely, 2^{16640125390389} is an apocalyptic number.

It is an amenable number.

16640125390389 is a deficient number, since it is larger than the sum of its proper divisors (7094001310539).

16640125390389 is a wasteful number, since it uses less digits than its factorization.

16640125390389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3363680204.

The product of its (nonzero) digits is 8398080, while the sum is 57.

The spelling of 16640125390389 in words is "sixteen trillion, six hundred forty billion, one hundred twenty-five million, three hundred ninety thousand, three hundred eighty-nine".