1016051556 has 48 divisors (see below), whose sum is σ = 2563190784. Its totient is φ = 311402496.

The previous prime is 1016051551. The next prime is 1016051557. The reversal of 1016051556 is 6551506101.

It is a super-2 number, since 2×1016051556² = 2064721528900042272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1016051551) 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, 27421 + ... + 52763.

It is an arithmetic number, because the mean of its divisors is an integer number (53399808).

Almost surely, 2^1016051556 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 1016051556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1281595392).

1016051556 is an abundant number, since it is smaller than the sum of its proper divisors (1547139228).

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

1016051556 is a wasteful number, since it uses less digits than its factorization.

1016051556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25620 (or 25618 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 30.

The square root of 1016051556 is about 31875.5636185464. The cubic root of 1016051556 is about 1005.3221432081.

Adding to 1016051556 its reverse (6551506101), we get a palindrome (7567557657).

It can be divided in two parts, 10160 and 51556, that added together give a palindrome (61716).

The spelling of 1016051556 in words is "one billion, sixteen million, fifty-one thousand, five hundred fifty-six".