16777366423 has 4 divisors (see below), whose sum is σ = 16777950208. Its totient is φ = 16776782640.

The previous prime is 16777366393. The next prime is 16777366429. The reversal of 16777366423 is 32466377761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32466377761 = 61 ⋅532235701.

It is a cyclic number.

It is not a de Polignac number, because 16777366423 - 2⁵ = 16777366391 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 (16777366429) 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, 246423 + ... + 307048.

It is an arithmetic number, because the mean of its divisors is an integer number (4194487552).

Almost surely, 2^16777366423 is an apocalyptic number.

16777366423 is a deficient number, since it is larger than the sum of its proper divisors (583785).

16777366423 is an equidigital number, since it uses as much as digits as its factorization.

16777366423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583784.

The product of its digits is 5334336, while the sum is 52.

The spelling of 16777366423 in words is "sixteen billion, seven hundred seventy-seven million, three hundred sixty-six thousand, four hundred twenty-three".