16378063 has 4 divisors (see below), whose sum is σ = 17637928. Its totient is φ = 15118200.

The previous prime is 16378051. The next prime is 16378081. The reversal of 16378063 is 36087361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36087361 = 2309 ⋅15629.

It is a cyclic number.

It is not a de Polignac number, because 16378063 - 2²¹ = 14280911 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 (16378003) 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, 629913 + ... + 629938.

It is an arithmetic number, because the mean of its divisors is an integer number (4409482).

Almost surely, 2^16378063 is an apocalyptic number.

16378063 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

16378063 is a deficient number, since it is larger than the sum of its proper divisors (1259865).

16378063 is a wasteful number, since it uses less digits than its factorization.

16378063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1259864.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 16378063 is about 4046.9819619069. The cubic root of 16378063 is about 253.9534862230.

It can be divided in two parts, 1637 and 8063, that multiplied together give a palindrome (13199131).

The spelling of 16378063 in words is "sixteen million, three hundred seventy-eight thousand, sixty-three".