20395620203387 has 8 divisors (see below), whose sum is σ = 23961288071280. Its totient is φ = 17115205764960.

The previous prime is 20395620203381. The next prime is 20395620203393. The reversal of 20395620203387 is 78330202659302.

It is an interprime number because it is at equal distance from previous prime (20395620203381) and next prime (20395620203393).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20395620203387 - 2¹² = 20395620199291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20395620203381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71313357212 + ... + 71313357497.

It is an arithmetic number, because the mean of its divisors is an integer number (2995161008910).

Almost surely, 2^{20395620203387} is an apocalyptic number.

20395620203387 is a deficient number, since it is larger than the sum of its proper divisors (3565667867893).

20395620203387 is a wasteful number, since it uses less digits than its factorization.

20395620203387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142626714733.

The product of its (nonzero) digits is 3265920, while the sum is 50.

The spelling of 20395620203387 in words is "twenty trillion, three hundred ninety-five billion, six hundred twenty million, two hundred three thousand, three hundred eighty-seven".