1015656216 has 128 divisors (see below), whose sum is σ = 2715060480. Its totient is φ = 316141056.

The previous prime is 1015656209. The next prime is 1015656217. The reversal of 1015656216 is 6126565101.

1015656216 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 (1015656217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2558130 + ... + 2558526.

It is an arithmetic number, because the mean of its divisors is an integer number (21211410).

Almost surely, 2^1015656216 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 1015656216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1357530240).

1015656216 is an abundant number, since it is smaller than the sum of its proper divisors (1699404264).

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

1015656216 is a wasteful number, since it uses less digits than its factorization.

1015656216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553 (or 549 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 1015656216 is about 31869.3617130937. The cubic root of 1015656216 is about 1005.1917378782.

It can be divided in two parts, 1015 and 656216, that added together give a triangular number (657231 = T₁₁₄₆).

The spelling of 1015656216 in words is "one billion, fifteen million, six hundred fifty-six thousand, two hundred sixteen".