16013855 has 16 divisors (see below), whose sum is σ = 22577184. Its totient is φ = 10750080.

The previous prime is 16013831. The next prime is 16013861. The reversal of 16013855 is 55831061.

It is not a de Polignac number, because 16013855 - 2¹² = 16009759 is a prime.

It is a super-2 number, since 2×16013855² = 512887103922050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10484 + ... + 11913.

It is an arithmetic number, because the mean of its divisors is an integer number (1411074).

Almost surely, 2^16013855 is an apocalyptic number.

16013855 is a deficient number, since it is larger than the sum of its proper divisors (6563329).

16013855 is a wasteful number, since it uses less digits than its factorization.

16013855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22426.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 16013855 is about 4001.7315002384. The cubic root of 16013855 is about 252.0569231869.

The spelling of 16013855 in words is "sixteen million, thirteen thousand, eight hundred fifty-five".