16401105 has 24 divisors (see below), whose sum is σ = 32490432. Its totient is φ = 7497504.

The previous prime is 16401097. The next prime is 16401113. The reversal of 16401105 is 50110461.

16401105 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (16401097) and next prime (16401113).

It is not a de Polignac number, because 16401105 - 2³ = 16401097 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25719 + ... + 26348.

It is an arithmetic number, because the mean of its divisors is an integer number (1353768).

Almost surely, 2^16401105 is an apocalyptic number.

16401105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16401105 is a deficient number, since it is larger than the sum of its proper divisors (16089327).

16401105 is a wasteful number, since it uses less digits than its factorization.

16401105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52085 (or 52082 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 16401105 is about 4049.8277741158. The cubic root of 16401105 is about 254.0725246018.

Adding to 16401105 its reverse (50110461), we get a palindrome (66511566).

The spelling of 16401105 in words is "sixteen million, four hundred one thousand, one hundred five".