134445666 has 16 divisors (see below), whose sum is σ = 269073504. Its totient is φ = 44784864.

The previous prime is 134445599. The next prime is 134445697. The reversal of 134445666 is 666544431.

It is a plaindrome in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3181 + ... + 16703.

It is an arithmetic number, because the mean of its divisors is an integer number (16817094).

Almost surely, 2^134445666 is an apocalyptic number.

134445666 is an abundant number, since it is smaller than the sum of its proper divisors (134627838).

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

134445666 is a wasteful number, since it uses less digits than its factorization.

134445666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15185.

The product of its digits is 207360, while the sum is 39.

The square root of 134445666 is about 11595.0707630441. The cubic root of 134445666 is about 512.2896742352.

It can be divided in two parts, 13444 and 5666, that added together give a triangular number (19110 = T₁₉₅).

The spelling of 134445666 in words is "one hundred thirty-four million, four hundred forty-five thousand, six hundred sixty-six".