66105426 has 8 divisors (see below), whose sum is σ = 132210864. Its totient is φ = 22035140.

The previous prime is 66105419. The next prime is 66105437. The reversal of 66105426 is 62450166.

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

66105426 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 66105393 and 66105402.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5508780 + ... + 5508791.

It is an arithmetic number, because the mean of its divisors is an integer number (16526358).

Almost surely, 2^66105426 is an apocalyptic number.

66105426 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

66105426 is a wasteful number, since it uses less digits than its factorization.

66105426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11017576.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 66105426 is about 8130.5243373352. The cubic root of 66105426 is about 404.3390652533.

The spelling of 66105426 in words is "sixty-six million, one hundred five thousand, four hundred twenty-six".