1061518068 has 144 divisors (see below), whose sum is σ = 3137937600. Its totient is φ = 309329280.

The previous prime is 1061518067. The next prime is 1061518091. The reversal of 1061518068 is 8608151601.

It is a super-2 number, since 2×1061518068² = 2253641217380905248, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1061518061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 345258 + ... + 348318.

Almost surely, 2^1061518068 is an apocalyptic number.

1061518068 is a gapful number since it is divisible by the number (18) 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 1061518068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1568968800).

1061518068 is an abundant number, since it is smaller than the sum of its proper divisors (2076419532).

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

1061518068 is a wasteful number, since it uses less digits than its factorization.

1061518068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3119 (or 3098 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The square root of 1061518068 is about 32580.9463950942. The cubic root of 1061518068 is about 1020.0993328867.

Adding to 1061518068 its reverse (8608151601), we get a palindrome (9669669669).

The spelling of 1061518068 in words is "one billion, sixty-one million, five hundred eighteen thousand, sixty-eight".