68448161 has 8 divisors (see below), whose sum is σ = 72596544. Its totient is φ = 64397520.

The previous prime is 68448143. The next prime is 68448167. The reversal of 68448161 is 16184486.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68448161 - 2²⁶ = 1339297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68448167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22991 + ... + 25796.

It is an arithmetic number, because the mean of its divisors is an integer number (9074568).

Almost surely, 2^68448161 is an apocalyptic number.

68448161 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

68448161 is a deficient number, since it is larger than the sum of its proper divisors (4148383).

68448161 is a wasteful number, since it uses less digits than its factorization.

68448161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48871.

The product of its digits is 36864, while the sum is 38.

The square root of 68448161 is about 8273.3403773808. The cubic root of 68448161 is about 409.0602330773.

The spelling of 68448161 in words is "sixty-eight million, four hundred forty-eight thousand, one hundred sixty-one".