16426620361 has 4 divisors (see below), whose sum is σ = 16808634832. Its totient is φ = 16044605892.

The previous prime is 16426620323. The next prime is 16426620503. The reversal of 16426620361 is 16302662461.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16302662461 = 337 ⋅48375853.

It is a cyclic number.

It is not a de Polignac number, because 16426620361 - 2²⁵ = 16393065929 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16426620361.

It is not an unprimeable number, because it can be changed into a prime (16426626361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191007171 + ... + 191007256.

It is an arithmetic number, because the mean of its divisors is an integer number (4202158708).

Almost surely, 2^16426620361 is an apocalyptic number.

It is an amenable number.

16426620361 is a deficient number, since it is larger than the sum of its proper divisors (382014471).

16426620361 is an equidigital number, since it uses as much as digits as its factorization.

16426620361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382014470.

The product of its (nonzero) digits is 62208, while the sum is 37.

The spelling of 16426620361 in words is "sixteen billion, four hundred twenty-six million, six hundred twenty thousand, three hundred sixty-one".