1061645112 has 96 divisors (see below), whose sum is σ = 3146532480. Its totient is φ = 320700480.

The previous prime is 1061645111. The next prime is 1061645113. The reversal of 1061645112 is 2115461601.

1061645112 is a `hidden beast` number, since 1 + 0 + 6 + 1 + 645 + 1 + 12 = 666.

It is an interprime number because it is at equal distance from previous prime (1061645111) and next prime (1061645113).

It is a super-2 number, since 2×1061645112² = 2254180687666985088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1061645111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 272893 + ... + 276755.

It is an arithmetic number, because the mean of its divisors is an integer number (32776380).

Almost surely, 2^1061645112 is an apocalyptic number.

1061645112 is a gapful number since it is divisible by the number (12) 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 1061645112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1573266240).

1061645112 is an abundant number, since it is smaller than the sum of its proper divisors (2084887368).

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

1061645112 is a wasteful number, since it uses less digits than its factorization.

1061645112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4233 (or 4226 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 1061645112 is about 32582.8960038852. The cubic root of 1061645112 is about 1020.1400269121.

The spelling of 1061645112 in words is "one billion, sixty-one million, six hundred forty-five thousand, one hundred twelve".