16261856 has 72 divisors (see below), whose sum is σ = 36154944. Its totient is φ = 7188480.

The previous prime is 16261849. The next prime is 16261873. The reversal of 16261856 is 65816261.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 167600 + ... + 167696.

It is an arithmetic number, because the mean of its divisors is an integer number (502152).

Almost surely, 2^16261856 is an apocalyptic number.

16261856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16261856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18077472).

16261856 is an abundant number, since it is smaller than the sum of its proper divisors (19893088).

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

16261856 is a wasteful number, since it uses less digits than its factorization.

16261856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164 (or 143 counting only the distinct ones).

The product of its digits is 17280, while the sum is 35.

The square root of 16261856 is about 4032.5991618310. The cubic root of 16261856 is about 253.3514360717.

The spelling of 16261856 in words is "sixteen million, two hundred sixty-one thousand, eight hundred fifty-six".