16493388323 has 2 divisors, whose sum is σ = 16493388324. Its totient is φ = 16493388322.

The previous prime is 16493388313. The next prime is 16493388337. The reversal of 16493388323 is 32388339461.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16493388323 - 2²⁶ = 16426279459 is a prime.

It is not a weakly prime, because it can be changed into another prime (16493388313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8246694161 + 8246694162.

It is an arithmetic number, because the mean of its divisors is an integer number (8246694162).

Almost surely, 2^16493388323 is an apocalyptic number.

16493388323 is a deficient number, since it is larger than the sum of its proper divisors (1).

16493388323 is an equidigital number, since it uses as much as digits as its factorization.

16493388323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2239488, while the sum is 50.

The spelling of 16493388323 in words is "sixteen billion, four hundred ninety-three million, three hundred eighty-eight thousand, three hundred twenty-three".