134161668 has 72 divisors (see below), whose sum is σ = 355694976. Its totient is φ = 42556800.

The previous prime is 134161619. The next prime is 134161697. The reversal of 134161668 is 866161431.

134161668 is a `hidden beast` number, since 1 + 34 + 1 + 616 + 6 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 257248 + ... + 257768.

It is an arithmetic number, because the mean of its divisors is an integer number (4940208).

Almost surely, 2^134161668 is an apocalyptic number.

134161668 is a gapful number since it is divisible by the number (18) 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 134161668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177847488).

134161668 is an abundant number, since it is smaller than the sum of its proper divisors (221533308).

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

134161668 is a wasteful number, since it uses less digits than its factorization.

134161668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865 (or 860 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 134161668 is about 11582.8177918847. The cubic root of 134161668 is about 511.9287060968.

The spelling of 134161668 in words is "one hundred thirty-four million, one hundred sixty-one thousand, six hundred sixty-eight".