881551216 has 80 divisors (see below), whose sum is σ = 2170083328. Its totient is φ = 337478400.

The previous prime is 881551211. The next prime is 881551219. The reversal of 881551216 is 612155188.

881551216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (881551211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35371 + ... + 54901.

Almost surely, 2^881551216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 881551216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1085041664).

881551216 is an abundant number, since it is smaller than the sum of its proper divisors (1288532112).

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

881551216 is a wasteful number, since it uses less digits than its factorization.

881551216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19590 (or 19584 counting only the distinct ones).

The product of its digits is 19200, while the sum is 37.

The square root of 881551216 is about 29690.9281768017. The cubic root of 881551216 is about 958.8467111246.

It can be divided in two parts, 8815 and 51216, that added together give a triangular number (60031 = T₃₄₆).

The spelling of 881551216 in words is "eight hundred eighty-one million, five hundred fifty-one thousand, two hundred sixteen".