16422903397 has 4 divisors (see below), whose sum is σ = 17388956556. Its totient is φ = 15456850240.

The previous prime is 16422903383. The next prime is 16422903401. The reversal of 16422903397 is 79330922461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79330922461 = 7 ⋅11332988923.

It can be written as a sum of positive squares in 2 ways, for example, as 14760792036 + 1662111361 = 121494^2 + 40769^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16422903397 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 (16422903337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 483026554 + ... + 483026587.

It is an arithmetic number, because the mean of its divisors is an integer number (4347239139).

Almost surely, 2^16422903397 is an apocalyptic number.

16422903397 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

16422903397 is a deficient number, since it is larger than the sum of its proper divisors (966053159).

16422903397 is an equidigital number, since it uses as much as digits as its factorization.

16422903397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966053158.

The product of its (nonzero) digits is 489888, while the sum is 46.

The spelling of 16422903397 in words is "sixteen billion, four hundred twenty-two million, nine hundred three thousand, three hundred ninety-seven".