68969160 has 96 divisors (see below), whose sum is σ = 241408440. Its totient is φ = 16975872.

The previous prime is 68969143. The next prime is 68969177. The reversal of 68969160 is 6196986.

It is an interprime number because it is at equal distance from previous prime (68969143) and next prime (68969177).

It can be written as a sum of positive squares in 4 ways, for example, as 55086084 + 13883076 = 7422^2 + 3726^2 .

It is a super-2 number, since 2×68969160² = 9513490062211200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2689 + ... + 12048.

Almost surely, 2^68969160 is an apocalyptic number.

68969160 is a gapful number since it is divisible by the number (60) 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 68969160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120704220).

68969160 is an abundant number, since it is smaller than the sum of its proper divisors (172439280).

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

68969160 is a wasteful number, since it uses less digits than its factorization.

68969160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14767 (or 14760 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 68969160 is about 8304.7673055902. The cubic root of 68969160 is about 410.0954764758.

The spelling of 68969160 in words is "sixty-eight million, nine hundred sixty-nine thousand, one hundred sixty".