1068553632 has 96 divisors (see below), whose sum is σ = 3065900544. Its totient is φ = 324403200.

The previous prime is 1068553631. The next prime is 1068553697. The reversal of 1068553632 is 2363558601.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×1068553632² = 2283613728920782848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1068553631) 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, 40032 + ... + 61152.

It is an arithmetic number, because the mean of its divisors is an integer number (31936464).

Almost surely, 2^1068553632 is an apocalyptic number.

1068553632 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 1068553632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1532950272).

1068553632 is an abundant number, since it is smaller than the sum of its proper divisors (1997346912).

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

1068553632 is a wasteful number, since it uses less digits than its factorization.

1068553632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21182 (or 21174 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 1068553632 is about 32688.7386113322. The cubic root of 1068553632 is about 1022.3480546491.

The spelling of 1068553632 in words is "one billion, sixty-eight million, five hundred fifty-three thousand, six hundred thirty-two".