1068555264 has 352 divisors, whose sum is σ = 3584378880. Its totient is φ = 276037632.

The previous prime is 1068555263. The next prime is 1068555277. The reversal of 1068555264 is 4625558601.

It is a super-2 number, since 2×1068555264² = 2283620704444219392, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1068555263) 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, 13525977 + ... + 13526055.

Almost surely, 2^1068555264 is an apocalyptic number.

1068555264 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 1068555264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1792189440).

1068555264 is an abundant number, since it is smaller than the sum of its proper divisors (2515823616).

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

1068555264 is a wasteful number, since it uses less digits than its factorization.

1068555264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 145 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 42.

The square root of 1068555264 is about 32688.7635740479. The cubic root of 1068555264 is about 1022.3485751256.

The spelling of 1068555264 in words is "one billion, sixty-eight million, five hundred fifty-five thousand, two hundred sixty-four".