1068156985 has 16 divisors (see below), whose sum is σ = 1467605376. Its totient is φ = 731098368.

The previous prime is 1068156983. The next prime is 1068157127. The reversal of 1068156985 is 5896518601.

It is not a de Polignac number, because 1068156985 - 2¹ = 1068156983 is a prime.

It is a super-2 number, since 2×1068156985² = 2281918689208580450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1068156983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8752 + ... + 47041.

It is an arithmetic number, because the mean of its divisors is an integer number (91725336).

Almost surely, 2^1068156985 is an apocalyptic number.

It is an amenable number.

1068156985 is a deficient number, since it is larger than the sum of its proper divisors (399448391).

1068156985 is an equidigital number, since it uses as much as digits as its factorization.

1068156985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56352.

The product of its (nonzero) digits is 518400, while the sum is 49.

The square root of 1068156985 is about 32682.6710199763. The cubic root of 1068156985 is about 1022.2215404957.

The spelling of 1068156985 in words is "one billion, sixty-eight million, one hundred fifty-six thousand, nine hundred eighty-five".