16271955 has 64 divisors (see below), whose sum is σ = 33684480. Its totient is φ = 7299072.

The previous prime is 16271953. The next prime is 16271963. The reversal of 16271955 is 55917261.

16271955 is digitally balanced in base 2, base 4 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16271955 - 2¹ = 16271953 is a prime.

16271955 is strictly pandigital in base 8.

It is not an unprimeable number, because it can be changed into a prime (16271953) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 63187 + ... + 63443.

It is an arithmetic number, because the mean of its divisors is an integer number (526320).

Almost surely, 2^16271955 is an apocalyptic number.

16271955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16271955 is an abundant number, since it is smaller than the sum of its proper divisors (17412525).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16271955 is a wasteful number, since it uses less digits than its factorization.

16271955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345 (or 339 counting only the distinct ones).

The product of its digits is 18900, while the sum is 36.

The square root of 16271955 is about 4033.8511375607. The cubic root of 16271955 is about 253.4038709780.

The spelling of 16271955 in words is "sixteen million, two hundred seventy-one thousand, nine hundred fifty-five".