16622563123 has 4 divisors (see below), whose sum is σ = 16657266240. Its totient is φ = 16587860008.

The previous prime is 16622563109. The next prime is 16622563141. The reversal of 16622563123 is 32136522661.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16622563123 - 2²⁵ = 16589008691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16622563163) 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, 17350840 + ... + 17351797.

It is an arithmetic number, because the mean of its divisors is an integer number (4164316560).

Almost surely, 2^16622563123 is an apocalyptic number.

16622563123 is a deficient number, since it is larger than the sum of its proper divisors (34703117).

16622563123 is an equidigital number, since it uses as much as digits as its factorization.

16622563123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34703116.

The product of its digits is 77760, while the sum is 37.

The spelling of 16622563123 in words is "sixteen billion, six hundred twenty-two million, five hundred sixty-three thousand, one hundred twenty-three".