1068611544 has 192 divisors, whose sum is σ = 3886122240. Its totient is φ = 256193280.

The previous prime is 1068611543. The next prime is 1068611549. The reversal of 1068611544 is 4451168601.

1068611544 is a `hidden beast` number, since 106 + 8 + 6 + 1 + 1 + 544 = 666.

It is a super-2 number, since 2×1068611544² = 2283861263940127872, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 1068611499 and 1068611508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1068611543) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 64659 + ... + 79485.

It is an arithmetic number, because the mean of its divisors is an integer number (20240220).

Almost surely, 2^1068611544 is an apocalyptic number.

1068611544 is a gapful number since it is divisible by the number (14) 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 1068611544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1943061120).

1068611544 is an abundant number, since it is smaller than the sum of its proper divisors (2817510696).

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

1068611544 is a wasteful number, since it uses less digits than its factorization.

1068611544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14870 (or 14863 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 1068611544 is about 32689.6244089772. The cubic root of 1068611544 is about 1022.3665235867.

The spelling of 1068611544 in words is "one billion, sixty-eight million, six hundred eleven thousand, five hundred forty-four".