1068117156 has 18 divisors (see below), whose sum is σ = 2699962902. Its totient is φ = 356039040.

The previous prime is 1068117139. The next prime is 1068117173. The reversal of 1068117156 is 6517118601.

It is an interprime number because it is at equal distance from previous prime (1068117139) and next prime (1068117173).

It can be written as a sum of positive squares in only one way, i.e., 900000000 + 168117156 = 30000^2 + 12966^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×1068117156² = 2281748517883056672, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 29669921 = 1068117156 / (1 + 0 + 6 + 8 + 1 + 1 + 7 + 1 + 5 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 1068117156.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14834925 + ... + 14834996.

It is an arithmetic number, because the mean of its divisors is an integer number (149997939).

Almost surely, 2^1068117156 is an apocalyptic number.

It is an amenable number.

1068117156 is an abundant number, since it is smaller than the sum of its proper divisors (1631845746).

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

1068117156 is a wasteful number, since it uses less digits than its factorization.

1068117156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29669931 (or 29669926 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 36.

The square root of 1068117156 is about 32682.0616852732. The cubic root of 1068117156 is about 1022.2088349451.

The spelling of 1068117156 in words is "one billion, sixty-eight million, one hundred seventeen thousand, one hundred fifty-six".