20202356966399 has 8 divisors (see below), whose sum is σ = 20354593092480. Its totient is φ = 20050419051936.

The previous prime is 20202356966387. The next prime is 20202356966413. The reversal of 20202356966399 is 99366965320202.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20202356966399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20202356966329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74416904 + ... + 74687885.

It is an arithmetic number, because the mean of its divisors is an integer number (2544324136560).

Almost surely, 2^{20202356966399} is an apocalyptic number.

20202356966399 is a deficient number, since it is larger than the sum of its proper divisors (152236126081).

20202356966399 is a wasteful number, since it uses less digits than its factorization.

20202356966399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149105809.

The product of its (nonzero) digits is 56687040, while the sum is 62.

The spelling of 20202356966399 in words is "twenty trillion, two hundred two billion, three hundred fifty-six million, nine hundred sixty-six thousand, three hundred ninety-nine".